Home / 854,221.60-1,279,582.80-433,734.40

Finding the Fourth Proportional to 854,221.60, 1,279,582.80 and 433,734.40

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Solution

The fourth proportional to 854,221.60, 1,279,582.80 and 433,734.40 is: 649,713.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,221.60 : 1,279,582.80 = 433,734.40 : x
  2. Step 2: Convert to fraction form
    854,221.60/1,279,582.80 = 433,734.40/x
  3. Step 3: Cross multiply
    854,221.60x = 1,279,582.80 × 433,734.40
  4. Step 4: Simplify right side
    854,221.60x = 554,999,078,008.32
  5. Step 5: Solve for x
    x = 554,999,078,008.32/854,221.60
  6. Step 6: Final answer
    x = 649,713.23

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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.