Home / 763,990.80-1,146,504.60-497,101.20

Finding the Fourth Proportional to 763,990.80, 1,146,504.60 and 497,101.20

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Solution

The fourth proportional to 763,990.80, 1,146,504.60 and 497,101.20 is: 745,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,990.80 : 1,146,504.60 = 497,101.20 : x
  2. Step 2: Convert to fraction form
    763,990.80/1,146,504.60 = 497,101.20/x
  3. Step 3: Cross multiply
    763,990.80x = 1,146,504.60 × 497,101.20
  4. Step 4: Simplify right side
    763,990.80x = 569,928,812,465.52
  5. Step 5: Solve for x
    x = 569,928,812,465.52/763,990.80
  6. Step 6: Final answer
    x = 745,989.10

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Double scale
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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.