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Finding the Fourth Proportional to 626,150.81, 864,089.79 and 339,670.90

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Solution

The fourth proportional to 626,150.81, 864,089.79 and 339,670.90 is: 468,746.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,150.81 : 864,089.79 = 339,670.90 : x
  2. Step 2: Convert to fraction form
    626,150.81/864,089.79 = 339,670.90/x
  3. Step 3: Cross multiply
    626,150.81x = 864,089.79 × 339,670.90
  4. Step 4: Simplify right side
    626,150.81x = 293,506,155,743.20
  5. Step 5: Solve for x
    x = 293,506,155,743.20/626,150.81
  6. Step 6: Final answer
    x = 468,746.74

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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.