Home / 891,721.51-1,230,560.16-542,735.77

Finding the Fourth Proportional to 891,721.51, 1,230,560.16 and 542,735.77

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Solution

The fourth proportional to 891,721.51, 1,230,560.16 and 542,735.77 is: 748,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,721.51 : 1,230,560.16 = 542,735.77 : x
  2. Step 2: Convert to fraction form
    891,721.51/1,230,560.16 = 542,735.77/x
  3. Step 3: Cross multiply
    891,721.51x = 1,230,560.16 × 542,735.77
  4. Step 4: Simplify right side
    891,721.51x = 667,869,012,892.52
  5. Step 5: Solve for x
    x = 667,869,012,892.52/891,721.51
  6. Step 6: Final answer
    x = 748,965.91

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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.