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Finding the Fourth Proportional to 636,570.24, 878,470.52 and 346,185.19

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Solution

The fourth proportional to 636,570.24, 878,470.52 and 346,185.19 is: 477,737.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,570.24 : 878,470.52 = 346,185.19 : x
  2. Step 2: Convert to fraction form
    636,570.24/878,470.52 = 346,185.19/x
  3. Step 3: Cross multiply
    636,570.24x = 878,470.52 × 346,185.19
  4. Step 4: Simplify right side
    636,570.24x = 304,113,483,242.76
  5. Step 5: Solve for x
    x = 304,113,483,242.76/636,570.24
  6. Step 6: Final answer
    x = 477,737.51

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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.