Home / 1,600,678.10-2,209,126.29-921,746.90

Finding the Fourth Proportional to 1,600,678.10, 2,209,126.29 and 921,746.90

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Solution

The fourth proportional to 1,600,678.10, 2,209,126.29 and 921,746.90 is: 1,272,120.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600,678.10 : 2,209,126.29 = 921,746.90 : x
  2. Step 2: Convert to fraction form
    1,600,678.10/2,209,126.29 = 921,746.90/x
  3. Step 3: Cross multiply
    1,600,678.10x = 2,209,126.29 × 921,746.90
  4. Step 4: Simplify right side
    1,600,678.10x = 2,036,255,309,516.00
  5. Step 5: Solve for x
    x = 2,036,255,309,516.00/1,600,678.10
  6. Step 6: Final answer
    x = 1,272,120.43

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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.