Home / 647,534.10-971,301.15-542,558.10

Finding the Fourth Proportional to 647,534.10, 971,301.15 and 542,558.10

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Solution

The fourth proportional to 647,534.10, 971,301.15 and 542,558.10 is: 813,837.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,534.10 : 971,301.15 = 542,558.10 : x
  2. Step 2: Convert to fraction form
    647,534.10/971,301.15 = 542,558.10/x
  3. Step 3: Cross multiply
    647,534.10x = 971,301.15 × 542,558.10
  4. Step 4: Simplify right side
    647,534.10x = 526,987,306,471.82
  5. Step 5: Solve for x
    x = 526,987,306,471.82/647,534.10
  6. Step 6: Final answer
    x = 813,837.15

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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.