Home / 768,210.98-1,060,074.38-445,869.05

Finding the Fourth Proportional to 768,210.98, 1,060,074.38 and 445,869.05

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Solution

The fourth proportional to 768,210.98, 1,060,074.38 and 445,869.05 is: 615,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,210.98 : 1,060,074.38 = 445,869.05 : x
  2. Step 2: Convert to fraction form
    768,210.98/1,060,074.38 = 445,869.05/x
  3. Step 3: Cross multiply
    768,210.98x = 1,060,074.38 × 445,869.05
  4. Step 4: Simplify right side
    768,210.98x = 472,654,349,210.22
  5. Step 5: Solve for x
    x = 472,654,349,210.22/768,210.98
  6. Step 6: Final answer
    x = 615,266.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.