Home / 720,011.60-1,078,721.40-571,230.80

Finding the Fourth Proportional to 720,011.60, 1,078,721.40 and 571,230.80

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Solution

The fourth proportional to 720,011.60, 1,078,721.40 and 571,230.80 is: 855,818.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,011.60 : 1,078,721.40 = 571,230.80 : x
  2. Step 2: Convert to fraction form
    720,011.60/1,078,721.40 = 571,230.80/x
  3. Step 3: Cross multiply
    720,011.60x = 1,078,721.40 × 571,230.80
  4. Step 4: Simplify right side
    720,011.60x = 616,198,888,299.12
  5. Step 5: Solve for x
    x = 616,198,888,299.12/720,011.60
  6. Step 6: Final answer
    x = 855,818.00

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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.