Home / 987,071.20-1,362,158.76-534,362.20

Finding the Fourth Proportional to 987,071.20, 1,362,158.76 and 534,362.20

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Solution

The fourth proportional to 987,071.20, 1,362,158.76 and 534,362.20 is: 737,420.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,071.20 : 1,362,158.76 = 534,362.20 : x
  2. Step 2: Convert to fraction form
    987,071.20/1,362,158.76 = 534,362.20/x
  3. Step 3: Cross multiply
    987,071.20x = 1,362,158.76 × 534,362.20
  4. Step 4: Simplify right side
    987,071.20x = 727,886,151,742.87
  5. Step 5: Solve for x
    x = 727,886,151,742.87/987,071.20
  6. Step 6: Final answer
    x = 737,420.11

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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.