Home / 670,019.70-1,005,029.55-404,598.90

Finding the Fourth Proportional to 670,019.70, 1,005,029.55 and 404,598.90

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Solution

The fourth proportional to 670,019.70, 1,005,029.55 and 404,598.90 is: 606,898.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,019.70 : 1,005,029.55 = 404,598.90 : x
  2. Step 2: Convert to fraction form
    670,019.70/1,005,029.55 = 404,598.90/x
  3. Step 3: Cross multiply
    670,019.70x = 1,005,029.55 × 404,598.90
  4. Step 4: Simplify right side
    670,019.70x = 406,633,850,397.50
  5. Step 5: Solve for x
    x = 406,633,850,397.50/670,019.70
  6. Step 6: Final answer
    x = 606,898.35

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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.