Home / 679,612.50-1,018,781.69-230,018.76

Finding the Fourth Proportional to 679,612.50, 1,018,781.69 and 230,018.76

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Solution

The fourth proportional to 679,612.50, 1,018,781.69 and 230,018.76 is: 344,812.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,612.50 : 1,018,781.69 = 230,018.76 : x
  2. Step 2: Convert to fraction form
    679,612.50/1,018,781.69 = 230,018.76/x
  3. Step 3: Cross multiply
    679,612.50x = 1,018,781.69 × 230,018.76
  4. Step 4: Simplify right side
    679,612.50x = 234,338,899,894.41
  5. Step 5: Solve for x
    x = 234,338,899,894.41/679,612.50
  6. Step 6: Final answer
    x = 344,812.52

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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.