Home / 872,077.60-1,306,273.20-778,688.80

Finding the Fourth Proportional to 872,077.60, 1,306,273.20 and 778,688.80

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Solution

The fourth proportional to 872,077.60, 1,306,273.20 and 778,688.80 is: 1,166,387.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,077.60 : 1,306,273.20 = 778,688.80 : x
  2. Step 2: Convert to fraction form
    872,077.60/1,306,273.20 = 778,688.80/x
  3. Step 3: Cross multiply
    872,077.60x = 1,306,273.20 × 778,688.80
  4. Step 4: Simplify right side
    872,077.60x = 1,017,180,310,580.16
  5. Step 5: Solve for x
    x = 1,017,180,310,580.16/872,077.60
  6. Step 6: Final answer
    x = 1,166,387.38

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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.