Home / 1,091,931.20-1,638,127.20-344,052.80

Finding the Fourth Proportional to 1,091,931.20, 1,638,127.20 and 344,052.80

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Solution

The fourth proportional to 1,091,931.20, 1,638,127.20 and 344,052.80 is: 516,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,931.20 : 1,638,127.20 = 344,052.80 : x
  2. Step 2: Convert to fraction form
    1,091,931.20/1,638,127.20 = 344,052.80/x
  3. Step 3: Cross multiply
    1,091,931.20x = 1,638,127.20 × 344,052.80
  4. Step 4: Simplify right side
    1,091,931.20x = 563,602,249,916.16
  5. Step 5: Solve for x
    x = 563,602,249,916.16/1,091,931.20
  6. Step 6: Final answer
    x = 516,151.80

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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.