Home / 747,427.50-1,121,930.28-348,453

Finding the Fourth Proportional to 747,427.50, 1,121,930.28 and 348,453

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Solution

The fourth proportional to 747,427.50, 1,121,930.28 and 348,453 is: 523,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,427.50 : 1,121,930.28 = 348,453 : x
  2. Step 2: Convert to fraction form
    747,427.50/1,121,930.28 = 348,453/x
  3. Step 3: Cross multiply
    747,427.50x = 1,121,930.28 × 348,453
  4. Step 4: Simplify right side
    747,427.50x = 390,939,971,856.84
  5. Step 5: Solve for x
    x = 390,939,971,856.84/747,427.50
  6. Step 6: Final answer
    x = 523,047.35

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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.