Home / 1,326,862.80-1,990,294.20-329,590.80

Finding the Fourth Proportional to 1,326,862.80, 1,990,294.20 and 329,590.80

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Solution

The fourth proportional to 1,326,862.80, 1,990,294.20 and 329,590.80 is: 494,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,862.80 : 1,990,294.20 = 329,590.80 : x
  2. Step 2: Convert to fraction form
    1,326,862.80/1,990,294.20 = 329,590.80/x
  3. Step 3: Cross multiply
    1,326,862.80x = 1,990,294.20 × 329,590.80
  4. Step 4: Simplify right side
    1,326,862.80x = 655,982,657,613.36
  5. Step 5: Solve for x
    x = 655,982,657,613.36/1,326,862.80
  6. Step 6: Final answer
    x = 494,386.20

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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.