Home / 1,371,130.32-2,056,030.86-687,723.60

Finding the Fourth Proportional to 1,371,130.32, 2,056,030.86 and 687,723.60

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Solution

The fourth proportional to 1,371,130.32, 2,056,030.86 and 687,723.60 is: 1,031,252.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,130.32 : 2,056,030.86 = 687,723.60 : x
  2. Step 2: Convert to fraction form
    1,371,130.32/2,056,030.86 = 687,723.60/x
  3. Step 3: Cross multiply
    1,371,130.32x = 2,056,030.86 × 687,723.60
  4. Step 4: Simplify right side
    1,371,130.32x = 1,413,980,944,750.30
  5. Step 5: Solve for x
    x = 1,413,980,944,750.30/1,371,130.32
  6. Step 6: Final answer
    x = 1,031,252.04

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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.