Home / 875,498.20-1,312,226.70-402,231.40

Finding the Fourth Proportional to 875,498.20, 1,312,226.70 and 402,231.40

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Solution

The fourth proportional to 875,498.20, 1,312,226.70 and 402,231.40 is: 602,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,498.20 : 1,312,226.70 = 402,231.40 : x
  2. Step 2: Convert to fraction form
    875,498.20/1,312,226.70 = 402,231.40/x
  3. Step 3: Cross multiply
    875,498.20x = 1,312,226.70 × 402,231.40
  4. Step 4: Simplify right side
    875,498.20x = 527,818,782,658.38
  5. Step 5: Solve for x
    x = 527,818,782,658.38/875,498.20
  6. Step 6: Final answer
    x = 602,878.20

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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.