Home / 979,020.12-1,351,133.28-571,253.34

Finding the Fourth Proportional to 979,020.12, 1,351,133.28 and 571,253.34

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Solution

The fourth proportional to 979,020.12, 1,351,133.28 and 571,253.34 is: 788,379.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,020.12 : 1,351,133.28 = 571,253.34 : x
  2. Step 2: Convert to fraction form
    979,020.12/1,351,133.28 = 571,253.34/x
  3. Step 3: Cross multiply
    979,020.12x = 1,351,133.28 × 571,253.34
  4. Step 4: Simplify right side
    979,020.12x = 771,839,398,985.16
  5. Step 5: Solve for x
    x = 771,839,398,985.16/979,020.12
  6. Step 6: Final answer
    x = 788,379.51

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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.