Home / 763,815.60-1,146,947.40-607,345.20

Finding the Fourth Proportional to 763,815.60, 1,146,947.40 and 607,345.20

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Solution

The fourth proportional to 763,815.60, 1,146,947.40 and 607,345.20 is: 911,991.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,815.60 : 1,146,947.40 = 607,345.20 : x
  2. Step 2: Convert to fraction form
    763,815.60/1,146,947.40 = 607,345.20/x
  3. Step 3: Cross multiply
    763,815.60x = 1,146,947.40 × 607,345.20
  4. Step 4: Simplify right side
    763,815.60x = 696,592,998,042.48
  5. Step 5: Solve for x
    x = 696,592,998,042.48/763,815.60
  6. Step 6: Final answer
    x = 911,991.06

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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.