Home / 3,138,871.02-4,331,342.76-1,761,899.40

Finding the Fourth Proportional to 3,138,871.02, 4,331,342.76 and 1,761,899.40

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Solution

The fourth proportional to 3,138,871.02, 4,331,342.76 and 1,761,899.40 is: 2,431,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,871.02 : 4,331,342.76 = 1,761,899.40 : x
  2. Step 2: Convert to fraction form
    3,138,871.02/4,331,342.76 = 1,761,899.40/x
  3. Step 3: Cross multiply
    3,138,871.02x = 4,331,342.76 × 1,761,899.40
  4. Step 4: Simplify right side
    3,138,871.02x = 7,631,390,210,038.34
  5. Step 5: Solve for x
    x = 7,631,390,210,038.34/3,138,871.02
  6. Step 6: Final answer
    x = 2,431,253.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.