Home / 947,927.20-1,421,372.40-386,327.20

Finding the Fourth Proportional to 947,927.20, 1,421,372.40 and 386,327.20

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Solution

The fourth proportional to 947,927.20, 1,421,372.40 and 386,327.20 is: 579,279.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,927.20 : 1,421,372.40 = 386,327.20 : x
  2. Step 2: Convert to fraction form
    947,927.20/1,421,372.40 = 386,327.20/x
  3. Step 3: Cross multiply
    947,927.20x = 1,421,372.40 × 386,327.20
  4. Step 4: Simplify right side
    947,927.20x = 549,114,819,449.28
  5. Step 5: Solve for x
    x = 549,114,819,449.28/947,927.20
  6. Step 6: Final answer
    x = 579,279.53

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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.