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Finding the Fourth Proportional to 608,067.40, 912,101.10 and 409,001.80

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Solution

The fourth proportional to 608,067.40, 912,101.10 and 409,001.80 is: 613,502.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,067.40 : 912,101.10 = 409,001.80 : x
  2. Step 2: Convert to fraction form
    608,067.40/912,101.10 = 409,001.80/x
  3. Step 3: Cross multiply
    608,067.40x = 912,101.10 × 409,001.80
  4. Step 4: Simplify right side
    608,067.40x = 373,050,991,681.98
  5. Step 5: Solve for x
    x = 373,050,991,681.98/608,067.40
  6. Step 6: Final answer
    x = 613,502.70

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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.