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Finding the Fourth Proportional to 607,279.38, 910,309.50 and 207,646.86

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Solution

The fourth proportional to 607,279.38, 910,309.50 and 207,646.86 is: 311,261.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,279.38 : 910,309.50 = 207,646.86 : x
  2. Step 2: Convert to fraction form
    607,279.38/910,309.50 = 207,646.86/x
  3. Step 3: Cross multiply
    607,279.38x = 910,309.50 × 207,646.86
  4. Step 4: Simplify right side
    607,279.38x = 189,022,909,303.17
  5. Step 5: Solve for x
    x = 189,022,909,303.17/607,279.38
  6. Step 6: Final answer
    x = 311,261.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.