Home / 979,009.02-1,351,117.94-571,242.22

Finding the Fourth Proportional to 979,009.02, 1,351,117.94 and 571,242.22

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Solution

The fourth proportional to 979,009.02, 1,351,117.94 and 571,242.22 is: 788,364.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,009.02 : 1,351,117.94 = 571,242.22 : x
  2. Step 2: Convert to fraction form
    979,009.02/1,351,117.94 = 571,242.22/x
  3. Step 3: Cross multiply
    979,009.02x = 1,351,117.94 × 571,242.22
  4. Step 4: Simplify right side
    979,009.02x = 771,815,611,527.43
  5. Step 5: Solve for x
    x = 771,815,611,527.43/979,009.02
  6. Step 6: Final answer
    x = 788,364.15

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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.