Home / 680,101.80-1,020,152.70-575,125.80

Finding the Fourth Proportional to 680,101.80, 1,020,152.70 and 575,125.80

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Solution

The fourth proportional to 680,101.80, 1,020,152.70 and 575,125.80 is: 862,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,101.80 : 1,020,152.70 = 575,125.80 : x
  2. Step 2: Convert to fraction form
    680,101.80/1,020,152.70 = 575,125.80/x
  3. Step 3: Cross multiply
    680,101.80x = 1,020,152.70 × 575,125.80
  4. Step 4: Simplify right side
    680,101.80x = 586,716,137,709.66
  5. Step 5: Solve for x
    x = 586,716,137,709.66/680,101.80
  6. Step 6: Final answer
    x = 862,688.70

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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.