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Finding the Fourth Proportional to 626,547.13, 864,632.85 and 340,067.20

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Solution

The fourth proportional to 626,547.13, 864,632.85 and 340,067.20 is: 469,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,547.13 : 864,632.85 = 340,067.20 : x
  2. Step 2: Convert to fraction form
    626,547.13/864,632.85 = 340,067.20/x
  3. Step 3: Cross multiply
    626,547.13x = 864,632.85 × 340,067.20
  4. Step 4: Simplify right side
    626,547.13x = 294,033,272,327.52
  5. Step 5: Solve for x
    x = 294,033,272,327.52/626,547.13
  6. Step 6: Final answer
    x = 469,291.55

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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.