Home / 670,323.60-1,005,485.40-615,211.20

Finding the Fourth Proportional to 670,323.60, 1,005,485.40 and 615,211.20

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Solution

The fourth proportional to 670,323.60, 1,005,485.40 and 615,211.20 is: 922,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,323.60 : 1,005,485.40 = 615,211.20 : x
  2. Step 2: Convert to fraction form
    670,323.60/1,005,485.40 = 615,211.20/x
  3. Step 3: Cross multiply
    670,323.60x = 1,005,485.40 × 615,211.20
  4. Step 4: Simplify right side
    670,323.60x = 618,585,879,516.48
  5. Step 5: Solve for x
    x = 618,585,879,516.48/670,323.60
  6. Step 6: Final answer
    x = 922,816.80

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Similar ratio
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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.