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Finding the Fourth Proportional to 661,305.82, 912,543.66 and 366,962.92

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Solution

The fourth proportional to 661,305.82, 912,543.66 and 366,962.92 is: 506,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,305.82 : 912,543.66 = 366,962.92 : x
  2. Step 2: Convert to fraction form
    661,305.82/912,543.66 = 366,962.92/x
  3. Step 3: Cross multiply
    661,305.82x = 912,543.66 × 366,962.92
  4. Step 4: Simplify right side
    661,305.82x = 334,869,686,101.09
  5. Step 5: Solve for x
    x = 334,869,686,101.09/661,305.82
  6. Step 6: Final answer
    x = 506,376.44

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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.