Home / 976,278.09-1,464,373.40-266,303.78

Finding the Fourth Proportional to 976,278.09, 1,464,373.40 and 266,303.78

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Solution

The fourth proportional to 976,278.09, 1,464,373.40 and 266,303.78 is: 399,443.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,278.09 : 1,464,373.40 = 266,303.78 : x
  2. Step 2: Convert to fraction form
    976,278.09/1,464,373.40 = 266,303.78/x
  3. Step 3: Cross multiply
    976,278.09x = 1,464,373.40 × 266,303.78
  4. Step 4: Simplify right side
    976,278.09x = 389,968,171,751.45
  5. Step 5: Solve for x
    x = 389,968,171,751.45/976,278.09
  6. Step 6: Final answer
    x = 399,443.74

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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.