Home / 715,973.56-987,055.08-571,270.70

Finding the Fourth Proportional to 715,973.56, 987,055.08 and 571,270.70

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Solution

The fourth proportional to 715,973.56, 987,055.08 and 571,270.70 is: 787,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,973.56 : 987,055.08 = 571,270.70 : x
  2. Step 2: Convert to fraction form
    715,973.56/987,055.08 = 571,270.70/x
  3. Step 3: Cross multiply
    715,973.56x = 987,055.08 × 571,270.70
  4. Step 4: Simplify right side
    715,973.56x = 563,875,646,490.16
  5. Step 5: Solve for x
    x = 563,875,646,490.16/715,973.56
  6. Step 6: Final answer
    x = 787,564.90

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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.