Home / 1,272,466.46-1,908,649.74-431,018.18

Finding the Fourth Proportional to 1,272,466.46, 1,908,649.74 and 431,018.18

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Solution

The fourth proportional to 1,272,466.46, 1,908,649.74 and 431,018.18 is: 646,510.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,466.46 : 1,908,649.74 = 431,018.18 : x
  2. Step 2: Convert to fraction form
    1,272,466.46/1,908,649.74 = 431,018.18/x
  3. Step 3: Cross multiply
    1,272,466.46x = 1,908,649.74 × 431,018.18
  4. Step 4: Simplify right side
    1,272,466.46x = 822,662,737,192.27
  5. Step 5: Solve for x
    x = 822,662,737,192.27/1,272,466.46
  6. Step 6: Final answer
    x = 646,510.35

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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.