Home / 679,828.40-1,020,034.20-347,404.40

Finding the Fourth Proportional to 679,828.40, 1,020,034.20 and 347,404.40

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Solution

The fourth proportional to 679,828.40, 1,020,034.20 and 347,404.40 is: 521,255.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,828.40 : 1,020,034.20 = 347,404.40 : x
  2. Step 2: Convert to fraction form
    679,828.40/1,020,034.20 = 347,404.40/x
  3. Step 3: Cross multiply
    679,828.40x = 1,020,034.20 × 347,404.40
  4. Step 4: Simplify right side
    679,828.40x = 354,364,369,230.48
  5. Step 5: Solve for x
    x = 354,364,369,230.48/679,828.40
  6. Step 6: Final answer
    x = 521,255.61

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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.