Home / 891,876.48-1,338,019.02-386,522.28

Finding the Fourth Proportional to 891,876.48, 1,338,019.02 and 386,522.28

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Solution

The fourth proportional to 891,876.48, 1,338,019.02 and 386,522.28 is: 579,871.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,876.48 : 1,338,019.02 = 386,522.28 : x
  2. Step 2: Convert to fraction form
    891,876.48/1,338,019.02 = 386,522.28/x
  3. Step 3: Cross multiply
    891,876.48x = 1,338,019.02 × 386,522.28
  4. Step 4: Simplify right side
    891,876.48x = 517,174,162,293.77
  5. Step 5: Solve for x
    x = 517,174,162,293.77/891,876.48
  6. Step 6: Final answer
    x = 579,871.96

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1.5x scale

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.