Home / 763,433.80-1,145,150.70-483,267.40

Finding the Fourth Proportional to 763,433.80, 1,145,150.70 and 483,267.40

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Solution

The fourth proportional to 763,433.80, 1,145,150.70 and 483,267.40 is: 724,901.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,433.80 : 1,145,150.70 = 483,267.40 : x
  2. Step 2: Convert to fraction form
    763,433.80/1,145,150.70 = 483,267.40/x
  3. Step 3: Cross multiply
    763,433.80x = 1,145,150.70 × 483,267.40
  4. Step 4: Simplify right side
    763,433.80x = 553,414,001,397.18
  5. Step 5: Solve for x
    x = 553,414,001,397.18/763,433.80
  6. Step 6: Final answer
    x = 724,901.10

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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.