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Finding the Fourth Proportional to 626,545.80, 864,634.19 and 340,066.01

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Solution

The fourth proportional to 626,545.80, 864,634.19 and 340,066.01 is: 469,291.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,545.80 : 864,634.19 = 340,066.01 : x
  2. Step 2: Convert to fraction form
    626,545.80/864,634.19 = 340,066.01/x
  3. Step 3: Cross multiply
    626,545.80x = 864,634.19 × 340,066.01
  4. Step 4: Simplify right side
    626,545.80x = 294,032,693,079.38
  5. Step 5: Solve for x
    x = 294,032,693,079.38/626,545.80
  6. Step 6: Final answer
    x = 469,291.62

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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.