Home / 603,140.02-904,710.38-378,658.12

Finding the Fourth Proportional to 603,140.02, 904,710.38 and 378,658.12

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Solution

The fourth proportional to 603,140.02, 904,710.38 and 378,658.12 is: 567,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,140.02 : 904,710.38 = 378,658.12 : x
  2. Step 2: Convert to fraction form
    603,140.02/904,710.38 = 378,658.12/x
  3. Step 3: Cross multiply
    603,140.02x = 904,710.38 × 378,658.12
  4. Step 4: Simplify right side
    603,140.02x = 342,575,931,635.29
  5. Step 5: Solve for x
    x = 342,575,931,635.29/603,140.02
  6. Step 6: Final answer
    x = 567,987.40

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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.