Home / 860,901.74-1,187,723.50-538,489.34

Finding the Fourth Proportional to 860,901.74, 1,187,723.50 and 538,489.34

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Solution

The fourth proportional to 860,901.74, 1,187,723.50 and 538,489.34 is: 742,914.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,901.74 : 1,187,723.50 = 538,489.34 : x
  2. Step 2: Convert to fraction form
    860,901.74/1,187,723.50 = 538,489.34/x
  3. Step 3: Cross multiply
    860,901.74x = 1,187,723.50 × 538,489.34
  4. Step 4: Simplify right side
    860,901.74x = 639,576,443,617.49
  5. Step 5: Solve for x
    x = 639,576,443,617.49/860,901.74
  6. Step 6: Final answer
    x = 742,914.57

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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.