Home / 875,121.20-1,312,681.80-576,004.40

Finding the Fourth Proportional to 875,121.20, 1,312,681.80 and 576,004.40

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Solution

The fourth proportional to 875,121.20, 1,312,681.80 and 576,004.40 is: 864,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,121.20 : 1,312,681.80 = 576,004.40 : x
  2. Step 2: Convert to fraction form
    875,121.20/1,312,681.80 = 576,004.40/x
  3. Step 3: Cross multiply
    875,121.20x = 1,312,681.80 × 576,004.40
  4. Step 4: Simplify right side
    875,121.20x = 756,110,492,599.92
  5. Step 5: Solve for x
    x = 756,110,492,599.92/875,121.20
  6. Step 6: Final answer
    x = 864,006.60

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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.