Home / 745,307.70-1,117,961.55-664,437.30

Finding the Fourth Proportional to 745,307.70, 1,117,961.55 and 664,437.30

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Solution

The fourth proportional to 745,307.70, 1,117,961.55 and 664,437.30 is: 996,655.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,307.70 : 1,117,961.55 = 664,437.30 : x
  2. Step 2: Convert to fraction form
    745,307.70/1,117,961.55 = 664,437.30/x
  3. Step 3: Cross multiply
    745,307.70x = 1,117,961.55 × 664,437.30
  4. Step 4: Simplify right side
    745,307.70x = 742,815,353,785.82
  5. Step 5: Solve for x
    x = 742,815,353,785.82/745,307.70
  6. Step 6: Final answer
    x = 996,655.95

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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.