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Finding the Fourth Proportional to 659,402.10, 910,013.28 and 369,011.22

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Solution

The fourth proportional to 659,402.10, 910,013.28 and 369,011.22 is: 509,256.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,402.10 : 910,013.28 = 369,011.22 : x
  2. Step 2: Convert to fraction form
    659,402.10/910,013.28 = 369,011.22/x
  3. Step 3: Cross multiply
    659,402.10x = 910,013.28 × 369,011.22
  4. Step 4: Simplify right side
    659,402.10x = 335,805,110,669.00
  5. Step 5: Solve for x
    x = 335,805,110,669.00/659,402.10
  6. Step 6: Final answer
    x = 509,256.96

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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.