Home / 832,005.10-1,248,007.65-512,670.70

Finding the Fourth Proportional to 832,005.10, 1,248,007.65 and 512,670.70

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Solution

The fourth proportional to 832,005.10, 1,248,007.65 and 512,670.70 is: 769,006.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,005.10 : 1,248,007.65 = 512,670.70 : x
  2. Step 2: Convert to fraction form
    832,005.10/1,248,007.65 = 512,670.70/x
  3. Step 3: Cross multiply
    832,005.10x = 1,248,007.65 × 512,670.70
  4. Step 4: Simplify right side
    832,005.10x = 639,816,955,530.86
  5. Step 5: Solve for x
    x = 639,816,955,530.86/832,005.10
  6. Step 6: Final answer
    x = 769,006.05

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Double scale
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Similar ratio
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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.