Home / 869,063.40-1,303,595.10-719,764.20

Finding the Fourth Proportional to 869,063.40, 1,303,595.10 and 719,764.20

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Solution

The fourth proportional to 869,063.40, 1,303,595.10 and 719,764.20 is: 1,079,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,063.40 : 1,303,595.10 = 719,764.20 : x
  2. Step 2: Convert to fraction form
    869,063.40/1,303,595.10 = 719,764.20/x
  3. Step 3: Cross multiply
    869,063.40x = 1,303,595.10 × 719,764.20
  4. Step 4: Simplify right side
    869,063.40x = 938,281,084,275.42
  5. Step 5: Solve for x
    x = 938,281,084,275.42/869,063.40
  6. Step 6: Final answer
    x = 1,079,646.30

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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.