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Finding the Fourth Proportional to 626,934.79, 865,162.40 and 340,456.94

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Solution

The fourth proportional to 626,934.79, 865,162.40 and 340,456.94 is: 469,826.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,934.79 : 865,162.40 = 340,456.94 : x
  2. Step 2: Convert to fraction form
    626,934.79/865,162.40 = 340,456.94/x
  3. Step 3: Cross multiply
    626,934.79x = 865,162.40 × 340,456.94
  4. Step 4: Simplify right side
    626,934.79x = 294,550,543,307.06
  5. Step 5: Solve for x
    x = 294,550,543,307.06/626,934.79
  6. Step 6: Final answer
    x = 469,826.44

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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.