Home / 874,920.80-1,312,381.20-432,552.80

Finding the Fourth Proportional to 874,920.80, 1,312,381.20 and 432,552.80

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Solution

The fourth proportional to 874,920.80, 1,312,381.20 and 432,552.80 is: 648,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,920.80 : 1,312,381.20 = 432,552.80 : x
  2. Step 2: Convert to fraction form
    874,920.80/1,312,381.20 = 432,552.80/x
  3. Step 3: Cross multiply
    874,920.80x = 1,312,381.20 × 432,552.80
  4. Step 4: Simplify right side
    874,920.80x = 567,674,162,727.36
  5. Step 5: Solve for x
    x = 567,674,162,727.36/874,920.80
  6. Step 6: Final answer
    x = 648,829.20

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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.