Home / 900,520.73-1,242,748.19-513,329.24

Finding the Fourth Proportional to 900,520.73, 1,242,748.19 and 513,329.24

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Solution

The fourth proportional to 900,520.73, 1,242,748.19 and 513,329.24 is: 708,411.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,520.73 : 1,242,748.19 = 513,329.24 : x
  2. Step 2: Convert to fraction form
    900,520.73/1,242,748.19 = 513,329.24/x
  3. Step 3: Cross multiply
    900,520.73x = 1,242,748.19 × 513,329.24
  4. Step 4: Simplify right side
    900,520.73x = 637,938,975,103.69
  5. Step 5: Solve for x
    x = 637,938,975,103.69/900,520.73
  6. Step 6: Final answer
    x = 708,411.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.