Home / 627,009.42-865,279.35-340,535.10

Finding the Fourth Proportional to 627,009.42, 865,279.35 and 340,535.10

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Solution

The fourth proportional to 627,009.42, 865,279.35 and 340,535.10 is: 469,941.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,009.42 : 865,279.35 = 340,535.10 : x
  2. Step 2: Convert to fraction form
    627,009.42/865,279.35 = 340,535.10/x
  3. Step 3: Cross multiply
    627,009.42x = 865,279.35 × 340,535.10
  4. Step 4: Simplify right side
    627,009.42x = 294,657,989,980.19
  5. Step 5: Solve for x
    x = 294,657,989,980.19/627,009.42
  6. Step 6: Final answer
    x = 469,941.89

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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.