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Finding the Fourth Proportional to 880,499.80, 1,319,218.80 and 406,212.40

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Solution

The fourth proportional to 880,499.80, 1,319,218.80 and 406,212.40 is: 608,612.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,499.80 : 1,319,218.80 = 406,212.40 : x
  2. Step 2: Convert to fraction form
    880,499.80/1,319,218.80 = 406,212.40/x
  3. Step 3: Cross multiply
    880,499.80x = 1,319,218.80 × 406,212.40
  4. Step 4: Simplify right side
    880,499.80x = 535,883,034,873.12
  5. Step 5: Solve for x
    x = 535,883,034,873.12/880,499.80
  6. Step 6: Final answer
    x = 608,612.33

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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.