Home / 680,070.35-1,020,105.53-561,875.15

Finding the Fourth Proportional to 680,070.35, 1,020,105.53 and 561,875.15

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Solution

The fourth proportional to 680,070.35, 1,020,105.53 and 561,875.15 is: 842,812.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,070.35 : 1,020,105.53 = 561,875.15 : x
  2. Step 2: Convert to fraction form
    680,070.35/1,020,105.53 = 561,875.15/x
  3. Step 3: Cross multiply
    680,070.35x = 1,020,105.53 × 561,875.15
  4. Step 4: Simplify right side
    680,070.35x = 573,171,944,875.20
  5. Step 5: Solve for x
    x = 573,171,944,875.20/680,070.35
  6. Step 6: Final answer
    x = 842,812.73

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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.