Home / 305,420.24-455,650.45-288,886.52

Finding the Fourth Proportional to 305,420.24, 455,650.45 and 288,886.52

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Solution

The fourth proportional to 305,420.24, 455,650.45 and 288,886.52 is: 430,984.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,420.24 : 455,650.45 = 288,886.52 : x
  2. Step 2: Convert to fraction form
    305,420.24/455,650.45 = 288,886.52/x
  3. Step 3: Cross multiply
    305,420.24x = 455,650.45 × 288,886.52
  4. Step 4: Simplify right side
    305,420.24x = 131,631,272,836.93
  5. Step 5: Solve for x
    x = 131,631,272,836.93/305,420.24
  6. Step 6: Final answer
    x = 430,984.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.