Home / 897,000.30-1,345,500.45-298,053.90

Finding the Fourth Proportional to 897,000.30, 1,345,500.45 and 298,053.90

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Solution

The fourth proportional to 897,000.30, 1,345,500.45 and 298,053.90 is: 447,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,000.30 : 1,345,500.45 = 298,053.90 : x
  2. Step 2: Convert to fraction form
    897,000.30/1,345,500.45 = 298,053.90/x
  3. Step 3: Cross multiply
    897,000.30x = 1,345,500.45 × 298,053.90
  4. Step 4: Simplify right side
    897,000.30x = 401,031,656,574.26
  5. Step 5: Solve for x
    x = 401,031,656,574.26/897,000.30
  6. Step 6: Final answer
    x = 447,080.85

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Double scale
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Similar ratio
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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.