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Finding the Fourth Proportional to 941,657.40, 1,412,486.10 and 342,638.10

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Solution

The fourth proportional to 941,657.40, 1,412,486.10 and 342,638.10 is: 513,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,657.40 : 1,412,486.10 = 342,638.10 : x
  2. Step 2: Convert to fraction form
    941,657.40/1,412,486.10 = 342,638.10/x
  3. Step 3: Cross multiply
    941,657.40x = 1,412,486.10 × 342,638.10
  4. Step 4: Simplify right side
    941,657.40x = 483,971,553,580.41
  5. Step 5: Solve for x
    x = 483,971,553,580.41/941,657.40
  6. Step 6: Final answer
    x = 513,957.15

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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.