Home / 860,265.18-1,187,172.18-538,158.42

Finding the Fourth Proportional to 860,265.18, 1,187,172.18 and 538,158.42

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Solution

The fourth proportional to 860,265.18, 1,187,172.18 and 538,158.42 is: 742,662.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,265.18 : 1,187,172.18 = 538,158.42 : x
  2. Step 2: Convert to fraction form
    860,265.18/1,187,172.18 = 538,158.42/x
  3. Step 3: Cross multiply
    860,265.18x = 1,187,172.18 × 538,158.42
  4. Step 4: Simplify right side
    860,265.18x = 638,886,704,656.76
  5. Step 5: Solve for x
    x = 638,886,704,656.76/860,265.18
  6. Step 6: Final answer
    x = 742,662.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.