Home / 1,439,953.75-2,160,280.56-442,681.75

Finding the Fourth Proportional to 1,439,953.75, 2,160,280.56 and 442,681.75

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Solution

The fourth proportional to 1,439,953.75, 2,160,280.56 and 442,681.75 is: 664,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,953.75 : 2,160,280.56 = 442,681.75 : x
  2. Step 2: Convert to fraction form
    1,439,953.75/2,160,280.56 = 442,681.75/x
  3. Step 3: Cross multiply
    1,439,953.75x = 2,160,280.56 × 442,681.75
  4. Step 4: Simplify right side
    1,439,953.75x = 956,316,778,791.78
  5. Step 5: Solve for x
    x = 956,316,778,791.78/1,439,953.75
  6. Step 6: Final answer
    x = 664,130.20

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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.