Home / 1,555,280.40-2,332,920.60-490,430.10

Finding the Fourth Proportional to 1,555,280.40, 2,332,920.60 and 490,430.10

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Solution

The fourth proportional to 1,555,280.40, 2,332,920.60 and 490,430.10 is: 735,645.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,280.40 : 2,332,920.60 = 490,430.10 : x
  2. Step 2: Convert to fraction form
    1,555,280.40/2,332,920.60 = 490,430.10/x
  3. Step 3: Cross multiply
    1,555,280.40x = 2,332,920.60 × 490,430.10
  4. Step 4: Simplify right side
    1,555,280.40x = 1,144,134,483,150.06
  5. Step 5: Solve for x
    x = 1,144,134,483,150.06/1,555,280.40
  6. Step 6: Final answer
    x = 735,645.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.