Home / 900,224.80-1,242,462.99-518,472.61

Finding the Fourth Proportional to 900,224.80, 1,242,462.99 and 518,472.61

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Solution

The fourth proportional to 900,224.80, 1,242,462.99 and 518,472.61 is: 715,580.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,224.80 : 1,242,462.99 = 518,472.61 : x
  2. Step 2: Convert to fraction form
    900,224.80/1,242,462.99 = 518,472.61/x
  3. Step 3: Cross multiply
    900,224.80x = 1,242,462.99 × 518,472.61
  4. Step 4: Simplify right side
    900,224.80x = 644,183,029,253.70
  5. Step 5: Solve for x
    x = 644,183,029,253.70/900,224.80
  6. Step 6: Final answer
    x = 715,580.19

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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.