Home / 830,050.40-1,245,221.40-297,880.40

Finding the Fourth Proportional to 830,050.40, 1,245,221.40 and 297,880.40

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Solution

The fourth proportional to 830,050.40, 1,245,221.40 and 297,880.40 is: 446,872.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,050.40 : 1,245,221.40 = 297,880.40 : x
  2. Step 2: Convert to fraction form
    830,050.40/1,245,221.40 = 297,880.40/x
  3. Step 3: Cross multiply
    830,050.40x = 1,245,221.40 × 297,880.40
  4. Step 4: Simplify right side
    830,050.40x = 370,927,048,720.56
  5. Step 5: Solve for x
    x = 370,927,048,720.56/830,050.40
  6. Step 6: Final answer
    x = 446,872.92

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Double scale
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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.