Home / 839,959.18-1,159,114.80-477,376.72

Finding the Fourth Proportional to 839,959.18, 1,159,114.80 and 477,376.72

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Solution

The fourth proportional to 839,959.18, 1,159,114.80 and 477,376.72 is: 658,763.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,959.18 : 1,159,114.80 = 477,376.72 : x
  2. Step 2: Convert to fraction form
    839,959.18/1,159,114.80 = 477,376.72/x
  3. Step 3: Cross multiply
    839,959.18x = 1,159,114.80 × 477,376.72
  4. Step 4: Simplify right side
    839,959.18x = 553,334,421,327.46
  5. Step 5: Solve for x
    x = 553,334,421,327.46/839,959.18
  6. Step 6: Final answer
    x = 658,763.47

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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.