Home / 1,272,460.93-1,908,641.52-431,012.65

Finding the Fourth Proportional to 1,272,460.93, 1,908,641.52 and 431,012.65

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Solution

The fourth proportional to 1,272,460.93, 1,908,641.52 and 431,012.65 is: 646,502.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,460.93 : 1,908,641.52 = 431,012.65 : x
  2. Step 2: Convert to fraction form
    1,272,460.93/1,908,641.52 = 431,012.65/x
  3. Step 3: Cross multiply
    1,272,460.93x = 1,908,641.52 × 431,012.65
  4. Step 4: Simplify right side
    1,272,460.93x = 822,648,639,435.23
  5. Step 5: Solve for x
    x = 822,648,639,435.23/1,272,460.93
  6. Step 6: Final answer
    x = 646,502.08

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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.