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Finding the Fourth Proportional to 659,666.88, 910,263.42 and 369,294.30

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Solution

The fourth proportional to 659,666.88, 910,263.42 and 369,294.30 is: 509,583.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,666.88 : 910,263.42 = 369,294.30 : x
  2. Step 2: Convert to fraction form
    659,666.88/910,263.42 = 369,294.30/x
  3. Step 3: Cross multiply
    659,666.88x = 910,263.42 × 369,294.30
  4. Step 4: Simplify right side
    659,666.88x = 336,155,092,504.51
  5. Step 5: Solve for x
    x = 336,155,092,504.51/659,666.88
  6. Step 6: Final answer
    x = 509,583.10

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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.