Home / 527,209.02-727,558.47-288,745.02

Finding the Fourth Proportional to 527,209.02, 727,558.47 and 288,745.02

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Solution

The fourth proportional to 527,209.02, 727,558.47 and 288,745.02 is: 398,473.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,209.02 : 727,558.47 = 288,745.02 : x
  2. Step 2: Convert to fraction form
    527,209.02/727,558.47 = 288,745.02/x
  3. Step 3: Cross multiply
    527,209.02x = 727,558.47 × 288,745.02
  4. Step 4: Simplify right side
    527,209.02x = 210,078,884,971.32
  5. Step 5: Solve for x
    x = 210,078,884,971.32/527,209.02
  6. Step 6: Final answer
    x = 398,473.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.