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Finding the Fourth Proportional to 706,581.63, 975,061.80 and 400,685.94

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Solution

The fourth proportional to 706,581.63, 975,061.80 and 400,685.94 is: 552,934.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,581.63 : 975,061.80 = 400,685.94 : x
  2. Step 2: Convert to fraction form
    706,581.63/975,061.80 = 400,685.94/x
  3. Step 3: Cross multiply
    706,581.63x = 975,061.80 × 400,685.94
  4. Step 4: Simplify right side
    706,581.63x = 390,693,553,891.09
  5. Step 5: Solve for x
    x = 390,693,553,891.09/706,581.63
  6. Step 6: Final answer
    x = 552,934.77

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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.