Home / 698,649.60-1,047,974.40-255,590.40

Finding the Fourth Proportional to 698,649.60, 1,047,974.40 and 255,590.40

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Solution

The fourth proportional to 698,649.60, 1,047,974.40 and 255,590.40 is: 383,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,649.60 : 1,047,974.40 = 255,590.40 : x
  2. Step 2: Convert to fraction form
    698,649.60/1,047,974.40 = 255,590.40/x
  3. Step 3: Cross multiply
    698,649.60x = 1,047,974.40 × 255,590.40
  4. Step 4: Simplify right side
    698,649.60x = 267,852,196,085.76
  5. Step 5: Solve for x
    x = 267,852,196,085.76/698,649.60
  6. Step 6: Final answer
    x = 383,385.60

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1.5x scale

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.