Home / 875,428.91-1,312,761.98-465,008.40

Finding the Fourth Proportional to 875,428.91, 1,312,761.98 and 465,008.40

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Solution

The fourth proportional to 875,428.91, 1,312,761.98 and 465,008.40 is: 697,310.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,428.91 : 1,312,761.98 = 465,008.40 : x
  2. Step 2: Convert to fraction form
    875,428.91/1,312,761.98 = 465,008.40/x
  3. Step 3: Cross multiply
    875,428.91x = 1,312,761.98 × 465,008.40
  4. Step 4: Simplify right side
    875,428.91x = 610,445,349,063.15
  5. Step 5: Solve for x
    x = 610,445,349,063.15/875,428.91
  6. Step 6: Final answer
    x = 697,310.02

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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.