Home / 656,077.32-984,427.02-390,362.76

Finding the Fourth Proportional to 656,077.32, 984,427.02 and 390,362.76

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Solution

The fourth proportional to 656,077.32, 984,427.02 and 390,362.76 is: 585,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,077.32 : 984,427.02 = 390,362.76 : x
  2. Step 2: Convert to fraction form
    656,077.32/984,427.02 = 390,362.76/x
  3. Step 3: Cross multiply
    656,077.32x = 984,427.02 × 390,362.76
  4. Step 4: Simplify right side
    656,077.32x = 384,283,648,545.78
  5. Step 5: Solve for x
    x = 384,283,648,545.78/656,077.32
  6. Step 6: Final answer
    x = 585,729.21

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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.