Home / 1,528,889.28-2,110,788-1,013,078.40

Finding the Fourth Proportional to 1,528,889.28, 2,110,788 and 1,013,078.40

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Solution

The fourth proportional to 1,528,889.28, 2,110,788 and 1,013,078.40 is: 1,398,658.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,889.28 : 2,110,788 = 1,013,078.40 : x
  2. Step 2: Convert to fraction form
    1,528,889.28/2,110,788 = 1,013,078.40/x
  3. Step 3: Cross multiply
    1,528,889.28x = 2,110,788 × 1,013,078.40
  4. Step 4: Simplify right side
    1,528,889.28x = 2,138,393,729,779.20
  5. Step 5: Solve for x
    x = 2,138,393,729,779.20/1,528,889.28
  6. Step 6: Final answer
    x = 1,398,658.33

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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.