Home / 805,127.86-1,207,564.95-669,223.69

Finding the Fourth Proportional to 805,127.86, 1,207,564.95 and 669,223.69

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Solution

The fourth proportional to 805,127.86, 1,207,564.95 and 669,223.69 is: 1,003,730.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,127.86 : 1,207,564.95 = 669,223.69 : x
  2. Step 2: Convert to fraction form
    805,127.86/1,207,564.95 = 669,223.69/x
  3. Step 3: Cross multiply
    805,127.86x = 1,207,564.95 × 669,223.69
  4. Step 4: Simplify right side
    805,127.86x = 808,131,071,753.67
  5. Step 5: Solve for x
    x = 808,131,071,753.67/805,127.86
  6. Step 6: Final answer
    x = 1,003,730.11

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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.