Home / 781,526.74-1,172,126.08-220,430.02

Finding the Fourth Proportional to 781,526.74, 1,172,126.08 and 220,430.02

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Solution

The fourth proportional to 781,526.74, 1,172,126.08 and 220,430.02 is: 330,598.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,526.74 : 1,172,126.08 = 220,430.02 : x
  2. Step 2: Convert to fraction form
    781,526.74/1,172,126.08 = 220,430.02/x
  3. Step 3: Cross multiply
    781,526.74x = 1,172,126.08 × 220,430.02
  4. Step 4: Simplify right side
    781,526.74x = 258,371,774,799.88
  5. Step 5: Solve for x
    x = 258,371,774,799.88/781,526.74
  6. Step 6: Final answer
    x = 330,598.76

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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.