Home / 717,852.77-990,569.13-423,456.60

Finding the Fourth Proportional to 717,852.77, 990,569.13 and 423,456.60

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Solution

The fourth proportional to 717,852.77, 990,569.13 and 423,456.60 is: 584,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,852.77 : 990,569.13 = 423,456.60 : x
  2. Step 2: Convert to fraction form
    717,852.77/990,569.13 = 423,456.60/x
  3. Step 3: Cross multiply
    717,852.77x = 990,569.13 × 423,456.60
  4. Step 4: Simplify right side
    717,852.77x = 419,463,035,854.76
  5. Step 5: Solve for x
    x = 419,463,035,854.76/717,852.77
  6. Step 6: Final answer
    x = 584,330.18

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Double scale
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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.