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Finding the Fourth Proportional to 598,710.70, 898,066.05 and 521,728.30

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Solution

The fourth proportional to 598,710.70, 898,066.05 and 521,728.30 is: 782,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,710.70 : 898,066.05 = 521,728.30 : x
  2. Step 2: Convert to fraction form
    598,710.70/898,066.05 = 521,728.30/x
  3. Step 3: Cross multiply
    598,710.70x = 898,066.05 × 521,728.30
  4. Step 4: Simplify right side
    598,710.70x = 468,546,473,554.22
  5. Step 5: Solve for x
    x = 468,546,473,554.22/598,710.70
  6. Step 6: Final answer
    x = 782,592.45

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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.