Home / 719,411.20-1,079,246.40-298,729.60

Finding the Fourth Proportional to 719,411.20, 1,079,246.40 and 298,729.60

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Solution

The fourth proportional to 719,411.20, 1,079,246.40 and 298,729.60 is: 448,148.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,411.20 : 1,079,246.40 = 298,729.60 : x
  2. Step 2: Convert to fraction form
    719,411.20/1,079,246.40 = 298,729.60/x
  3. Step 3: Cross multiply
    719,411.20x = 1,079,246.40 × 298,729.60
  4. Step 4: Simplify right side
    719,411.20x = 322,402,845,373.44
  5. Step 5: Solve for x
    x = 322,402,845,373.44/719,411.20
  6. Step 6: Final answer
    x = 448,148.22

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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.