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Finding the Fourth Proportional to 706,681.71, 975,393.98 and 400,937.06

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Solution

The fourth proportional to 706,681.71, 975,393.98 and 400,937.06 is: 553,391.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,681.71 : 975,393.98 = 400,937.06 : x
  2. Step 2: Convert to fraction form
    706,681.71/975,393.98 = 400,937.06/x
  3. Step 3: Cross multiply
    706,681.71x = 975,393.98 × 400,937.06
  4. Step 4: Simplify right side
    706,681.71x = 391,071,592,678.21
  5. Step 5: Solve for x
    x = 391,071,592,678.21/706,681.71
  6. Step 6: Final answer
    x = 553,391.42

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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.