Home / 912,800.40-1,369,200.60-898,803.60

Finding the Fourth Proportional to 912,800.40, 1,369,200.60 and 898,803.60

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Solution

The fourth proportional to 912,800.40, 1,369,200.60 and 898,803.60 is: 1,348,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,800.40 : 1,369,200.60 = 898,803.60 : x
  2. Step 2: Convert to fraction form
    912,800.40/1,369,200.60 = 898,803.60/x
  3. Step 3: Cross multiply
    912,800.40x = 1,369,200.60 × 898,803.60
  4. Step 4: Simplify right side
    912,800.40x = 1,230,642,428,402.16
  5. Step 5: Solve for x
    x = 1,230,642,428,402.16/912,800.40
  6. Step 6: Final answer
    x = 1,348,205.40

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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.