Home / 690,804.10-1,036,206.15-410,176.90

Finding the Fourth Proportional to 690,804.10, 1,036,206.15 and 410,176.90

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Solution

The fourth proportional to 690,804.10, 1,036,206.15 and 410,176.90 is: 615,265.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,804.10 : 1,036,206.15 = 410,176.90 : x
  2. Step 2: Convert to fraction form
    690,804.10/1,036,206.15 = 410,176.90/x
  3. Step 3: Cross multiply
    690,804.10x = 1,036,206.15 × 410,176.90
  4. Step 4: Simplify right side
    690,804.10x = 425,027,826,367.94
  5. Step 5: Solve for x
    x = 425,027,826,367.94/690,804.10
  6. Step 6: Final answer
    x = 615,265.35

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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.