Home / 763,442.40-1,145,293.20-230,959.20

Finding the Fourth Proportional to 763,442.40, 1,145,293.20 and 230,959.20

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Solution

The fourth proportional to 763,442.40, 1,145,293.20 and 230,959.20 is: 346,478.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,442.40 : 1,145,293.20 = 230,959.20 : x
  2. Step 2: Convert to fraction form
    763,442.40/1,145,293.20 = 230,959.20/x
  3. Step 3: Cross multiply
    763,442.40x = 1,145,293.20 × 230,959.20
  4. Step 4: Simplify right side
    763,442.40x = 264,516,001,237.44
  5. Step 5: Solve for x
    x = 264,516,001,237.44/763,442.40
  6. Step 6: Final answer
    x = 346,478.01

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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.