Home / 680,070.40-1,020,105.60-559,801.60

Finding the Fourth Proportional to 680,070.40, 1,020,105.60 and 559,801.60

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Solution

The fourth proportional to 680,070.40, 1,020,105.60 and 559,801.60 is: 839,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,070.40 : 1,020,105.60 = 559,801.60 : x
  2. Step 2: Convert to fraction form
    680,070.40/1,020,105.60 = 559,801.60/x
  3. Step 3: Cross multiply
    680,070.40x = 1,020,105.60 × 559,801.60
  4. Step 4: Simplify right side
    680,070.40x = 571,056,747,048.96
  5. Step 5: Solve for x
    x = 571,056,747,048.96/680,070.40
  6. Step 6: Final answer
    x = 839,702.40

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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.