Home / 713,490.40-1,070,346.24-240,138.80

Finding the Fourth Proportional to 713,490.40, 1,070,346.24 and 240,138.80

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Solution

The fourth proportional to 713,490.40, 1,070,346.24 and 240,138.80 is: 360,245.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,490.40 : 1,070,346.24 = 240,138.80 : x
  2. Step 2: Convert to fraction form
    713,490.40/1,070,346.24 = 240,138.80/x
  3. Step 3: Cross multiply
    713,490.40x = 1,070,346.24 × 240,138.80
  4. Step 4: Simplify right side
    713,490.40x = 257,031,661,658.11
  5. Step 5: Solve for x
    x = 257,031,661,658.11/713,490.40
  6. Step 6: Final answer
    x = 360,245.44

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1.5x scale

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.