Home / 909,326.27-1,363,989.20-310,287.40

Finding the Fourth Proportional to 909,326.27, 1,363,989.20 and 310,287.40

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Solution

The fourth proportional to 909,326.27, 1,363,989.20 and 310,287.40 is: 465,431.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,326.27 : 1,363,989.20 = 310,287.40 : x
  2. Step 2: Convert to fraction form
    909,326.27/1,363,989.20 = 310,287.40/x
  3. Step 3: Cross multiply
    909,326.27x = 1,363,989.20 × 310,287.40
  4. Step 4: Simplify right side
    909,326.27x = 423,228,657,534.67
  5. Step 5: Solve for x
    x = 423,228,657,534.67/909,326.27
  6. Step 6: Final answer
    x = 465,431.02

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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.