Home / 582,521.60-872,032.80-345,742.40

Finding the Fourth Proportional to 582,521.60, 872,032.80 and 345,742.40

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Solution

The fourth proportional to 582,521.60, 872,032.80 and 345,742.40 is: 517,575.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,521.60 : 872,032.80 = 345,742.40 : x
  2. Step 2: Convert to fraction form
    582,521.60/872,032.80 = 345,742.40/x
  3. Step 3: Cross multiply
    582,521.60x = 872,032.80 × 345,742.40
  4. Step 4: Simplify right side
    582,521.60x = 301,498,713,150.72
  5. Step 5: Solve for x
    x = 301,498,713,150.72/582,521.60
  6. Step 6: Final answer
    x = 517,575.16

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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.