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Finding the Fourth Proportional to 666,423.06, 918,707.28 and 475,104.30

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Solution

The fourth proportional to 666,423.06, 918,707.28 and 475,104.30 is: 654,962.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,423.06 : 918,707.28 = 475,104.30 : x
  2. Step 2: Convert to fraction form
    666,423.06/918,707.28 = 475,104.30/x
  3. Step 3: Cross multiply
    666,423.06x = 918,707.28 × 475,104.30
  4. Step 4: Simplify right side
    666,423.06x = 436,481,779,169.30
  5. Step 5: Solve for x
    x = 436,481,779,169.30/666,423.06
  6. Step 6: Final answer
    x = 654,962.00

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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.