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Finding the Fourth Proportional to 616,801.52, 851,295 and 358,758.32

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Solution

The fourth proportional to 616,801.52, 851,295 and 358,758.32 is: 495,149.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,801.52 : 851,295 = 358,758.32 : x
  2. Step 2: Convert to fraction form
    616,801.52/851,295 = 358,758.32/x
  3. Step 3: Cross multiply
    616,801.52x = 851,295 × 358,758.32
  4. Step 4: Simplify right side
    616,801.52x = 305,409,164,024.40
  5. Step 5: Solve for x
    x = 305,409,164,024.40/616,801.52
  6. Step 6: Final answer
    x = 495,149.82

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1.5x scale

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.