Home / 907,280.40-1,360,920.60-509,149.20

Finding the Fourth Proportional to 907,280.40, 1,360,920.60 and 509,149.20

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Solution

The fourth proportional to 907,280.40, 1,360,920.60 and 509,149.20 is: 763,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,280.40 : 1,360,920.60 = 509,149.20 : x
  2. Step 2: Convert to fraction form
    907,280.40/1,360,920.60 = 509,149.20/x
  3. Step 3: Cross multiply
    907,280.40x = 1,360,920.60 × 509,149.20
  4. Step 4: Simplify right side
    907,280.40x = 692,911,634,753.52
  5. Step 5: Solve for x
    x = 692,911,634,753.52/907,280.40
  6. Step 6: Final answer
    x = 763,723.80

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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.