Home / 513,035.66-707,987.04-286,681.16

Finding the Fourth Proportional to 513,035.66, 707,987.04 and 286,681.16

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Solution

The fourth proportional to 513,035.66, 707,987.04 and 286,681.16 is: 395,618.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,035.66 : 707,987.04 = 286,681.16 : x
  2. Step 2: Convert to fraction form
    513,035.66/707,987.04 = 286,681.16/x
  3. Step 3: Cross multiply
    513,035.66x = 707,987.04 × 286,681.16
  4. Step 4: Simplify right side
    513,035.66x = 202,966,545,892.17
  5. Step 5: Solve for x
    x = 202,966,545,892.17/513,035.66
  6. Step 6: Final answer
    x = 395,618.79

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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.