Home / 1,402,160.40-2,103,240.60-391,280.40

Finding the Fourth Proportional to 1,402,160.40, 2,103,240.60 and 391,280.40

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Solution

The fourth proportional to 1,402,160.40, 2,103,240.60 and 391,280.40 is: 586,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,160.40 : 2,103,240.60 = 391,280.40 : x
  2. Step 2: Convert to fraction form
    1,402,160.40/2,103,240.60 = 391,280.40/x
  3. Step 3: Cross multiply
    1,402,160.40x = 2,103,240.60 × 391,280.40
  4. Step 4: Simplify right side
    1,402,160.40x = 822,956,823,264.24
  5. Step 5: Solve for x
    x = 822,956,823,264.24/1,402,160.40
  6. Step 6: Final answer
    x = 586,920.60

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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.