Home / 2,254,428-3,111,325.80-1,287,702.72

Finding the Fourth Proportional to 2,254,428, 3,111,325.80 and 1,287,702.72

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Solution

The fourth proportional to 2,254,428, 3,111,325.80 and 1,287,702.72 is: 1,777,152.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254,428 : 3,111,325.80 = 1,287,702.72 : x
  2. Step 2: Convert to fraction form
    2,254,428/3,111,325.80 = 1,287,702.72/x
  3. Step 3: Cross multiply
    2,254,428x = 3,111,325.80 × 1,287,702.72
  4. Step 4: Simplify right side
    2,254,428x = 4,006,462,695,466.18
  5. Step 5: Solve for x
    x = 4,006,462,695,466.18/2,254,428
  6. Step 6: Final answer
    x = 1,777,152.65

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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.