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Finding the Fourth Proportional to 616,887.90, 851,307.57 and 358,826.76

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Solution

The fourth proportional to 616,887.90, 851,307.57 and 358,826.76 is: 495,182.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,887.90 : 851,307.57 = 358,826.76 : x
  2. Step 2: Convert to fraction form
    616,887.90/851,307.57 = 358,826.76/x
  3. Step 3: Cross multiply
    616,887.90x = 851,307.57 × 358,826.76
  4. Step 4: Simplify right side
    616,887.90x = 305,471,937,106.57
  5. Step 5: Solve for x
    x = 305,471,937,106.57/616,887.90
  6. Step 6: Final answer
    x = 495,182.25

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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.