Home / 627,030.04-865,307.70-340,555.72

Finding the Fourth Proportional to 627,030.04, 865,307.70 and 340,555.72

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Solution

The fourth proportional to 627,030.04, 865,307.70 and 340,555.72 is: 469,970.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,030.04 : 865,307.70 = 340,555.72 : x
  2. Step 2: Convert to fraction form
    627,030.04/865,307.70 = 340,555.72/x
  3. Step 3: Cross multiply
    627,030.04x = 865,307.70 × 340,555.72
  4. Step 4: Simplify right side
    627,030.04x = 294,685,486,795.04
  5. Step 5: Solve for x
    x = 294,685,486,795.04/627,030.04
  6. Step 6: Final answer
    x = 469,970.29

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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.