Home / 1,074,875.76-1,612,936.80-542,438.40

Finding the Fourth Proportional to 1,074,875.76, 1,612,936.80 and 542,438.40

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Solution

The fourth proportional to 1,074,875.76, 1,612,936.80 and 542,438.40 is: 813,972.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074,875.76 : 1,612,936.80 = 542,438.40 : x
  2. Step 2: Convert to fraction form
    1,074,875.76/1,612,936.80 = 542,438.40/x
  3. Step 3: Cross multiply
    1,074,875.76x = 1,612,936.80 × 542,438.40
  4. Step 4: Simplify right side
    1,074,875.76x = 874,918,857,093.12
  5. Step 5: Solve for x
    x = 874,918,857,093.12/1,074,875.76
  6. Step 6: Final answer
    x = 813,972.08

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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.