Home / 1,020,165.90-1,530,248.85-842,873.10

Finding the Fourth Proportional to 1,020,165.90, 1,530,248.85 and 842,873.10

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Solution

The fourth proportional to 1,020,165.90, 1,530,248.85 and 842,873.10 is: 1,264,309.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,165.90 : 1,530,248.85 = 842,873.10 : x
  2. Step 2: Convert to fraction form
    1,020,165.90/1,530,248.85 = 842,873.10/x
  3. Step 3: Cross multiply
    1,020,165.90x = 1,530,248.85 × 842,873.10
  4. Step 4: Simplify right side
    1,020,165.90x = 1,289,805,591,970.94
  5. Step 5: Solve for x
    x = 1,289,805,591,970.94/1,020,165.90
  6. Step 6: Final answer
    x = 1,264,309.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.