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Finding the Fourth Proportional to 910,887, 1,257,024.06 and 508,479

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Solution

The fourth proportional to 910,887, 1,257,024.06 and 508,479 is: 701,701.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,887 : 1,257,024.06 = 508,479 : x
  2. Step 2: Convert to fraction form
    910,887/1,257,024.06 = 508,479/x
  3. Step 3: Cross multiply
    910,887x = 1,257,024.06 × 508,479
  4. Step 4: Simplify right side
    910,887x = 639,170,337,004.74
  5. Step 5: Solve for x
    x = 639,170,337,004.74/910,887
  6. Step 6: Final answer
    x = 701,701.02

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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.