Home / 1,272,459.93-1,908,640.02-431,011.65

Finding the Fourth Proportional to 1,272,459.93, 1,908,640.02 and 431,011.65

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Solution

The fourth proportional to 1,272,459.93, 1,908,640.02 and 431,011.65 is: 646,500.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,459.93 : 1,908,640.02 = 431,011.65 : x
  2. Step 2: Convert to fraction form
    1,272,459.93/1,908,640.02 = 431,011.65/x
  3. Step 3: Cross multiply
    1,272,459.93x = 1,908,640.02 × 431,011.65
  4. Step 4: Simplify right side
    1,272,459.93x = 822,646,084,276.23
  5. Step 5: Solve for x
    x = 822,646,084,276.23/1,272,459.93
  6. Step 6: Final answer
    x = 646,500.58

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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.