Home / 740,504.40-1,110,793.05-386,210.40

Finding the Fourth Proportional to 740,504.40, 1,110,793.05 and 386,210.40

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Solution

The fourth proportional to 740,504.40, 1,110,793.05 and 386,210.40 is: 579,334.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,504.40 : 1,110,793.05 = 386,210.40 : x
  2. Step 2: Convert to fraction form
    740,504.40/1,110,793.05 = 386,210.40/x
  3. Step 3: Cross multiply
    740,504.40x = 1,110,793.05 × 386,210.40
  4. Step 4: Simplify right side
    740,504.40x = 428,999,828,157.72
  5. Step 5: Solve for x
    x = 428,999,828,157.72/740,504.40
  6. Step 6: Final answer
    x = 579,334.61

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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.