Home / 948,439.53-1,308,819.87-518,710.50

Finding the Fourth Proportional to 948,439.53, 1,308,819.87 and 518,710.50

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Solution

The fourth proportional to 948,439.53, 1,308,819.87 and 518,710.50 is: 715,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,439.53 : 1,308,819.87 = 518,710.50 : x
  2. Step 2: Convert to fraction form
    948,439.53/1,308,819.87 = 518,710.50/x
  3. Step 3: Cross multiply
    948,439.53x = 1,308,819.87 × 518,710.50
  4. Step 4: Simplify right side
    948,439.53x = 678,898,609,177.64
  5. Step 5: Solve for x
    x = 678,898,609,177.64/948,439.53
  6. Step 6: Final answer
    x = 715,805.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.