Home / 1,445,127.08-1,989,725.48-1,226,904.12

Finding the Fourth Proportional to 1,445,127.08, 1,989,725.48 and 1,226,904.12

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Solution

The fourth proportional to 1,445,127.08, 1,989,725.48 and 1,226,904.12 is: 1,689,264.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445,127.08 : 1,989,725.48 = 1,226,904.12 : x
  2. Step 2: Convert to fraction form
    1,445,127.08/1,989,725.48 = 1,226,904.12/x
  3. Step 3: Cross multiply
    1,445,127.08x = 1,989,725.48 × 1,226,904.12
  4. Step 4: Simplify right side
    1,445,127.08x = 2,441,202,382,946.46
  5. Step 5: Solve for x
    x = 2,441,202,382,946.46/1,445,127.08
  6. Step 6: Final answer
    x = 1,689,264.86

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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.