Home / 849,988.72-1,172,987.22-462,808.72

Finding the Fourth Proportional to 849,988.72, 1,172,987.22 and 462,808.72

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Solution

The fourth proportional to 849,988.72, 1,172,987.22 and 462,808.72 is: 638,677.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,988.72 : 1,172,987.22 = 462,808.72 : x
  2. Step 2: Convert to fraction form
    849,988.72/1,172,987.22 = 462,808.72/x
  3. Step 3: Cross multiply
    849,988.72x = 1,172,987.22 × 462,808.72
  4. Step 4: Simplify right side
    849,988.72x = 542,868,713,864.56
  5. Step 5: Solve for x
    x = 542,868,713,864.56/849,988.72
  6. Step 6: Final answer
    x = 638,677.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.