Home / 1,272,466.29-1,908,649.58-431,018.01

Finding the Fourth Proportional to 1,272,466.29, 1,908,649.58 and 431,018.01

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Solution

The fourth proportional to 1,272,466.29, 1,908,649.58 and 431,018.01 is: 646,510.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,466.29 : 1,908,649.58 = 431,018.01 : x
  2. Step 2: Convert to fraction form
    1,272,466.29/1,908,649.58 = 431,018.01/x
  3. Step 3: Cross multiply
    1,272,466.29x = 1,908,649.58 × 431,018.01
  4. Step 4: Simplify right side
    1,272,466.29x = 822,662,341,603.85
  5. Step 5: Solve for x
    x = 822,662,341,603.85/1,272,466.29
  6. Step 6: Final answer
    x = 646,510.13

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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.