Home / 875,680.65-1,208,411.87-513,345.83

Finding the Fourth Proportional to 875,680.65, 1,208,411.87 and 513,345.83

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Solution

The fourth proportional to 875,680.65, 1,208,411.87 and 513,345.83 is: 708,401.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,680.65 : 1,208,411.87 = 513,345.83 : x
  2. Step 2: Convert to fraction form
    875,680.65/1,208,411.87 = 513,345.83/x
  3. Step 3: Cross multiply
    875,680.65x = 1,208,411.87 × 513,345.83
  4. Step 4: Simplify right side
    875,680.65x = 620,333,194,387.00
  5. Step 5: Solve for x
    x = 620,333,194,387.00/875,680.65
  6. Step 6: Final answer
    x = 708,401.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.