Home / 778,973.59-1,075,162.91-456,787.48

Finding the Fourth Proportional to 778,973.59, 1,075,162.91 and 456,787.48

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Solution

The fourth proportional to 778,973.59, 1,075,162.91 and 456,787.48 is: 630,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,973.59 : 1,075,162.91 = 456,787.48 : x
  2. Step 2: Convert to fraction form
    778,973.59/1,075,162.91 = 456,787.48/x
  3. Step 3: Cross multiply
    778,973.59x = 1,075,162.91 × 456,787.48
  4. Step 4: Simplify right side
    778,973.59x = 491,120,961,606.70
  5. Step 5: Solve for x
    x = 491,120,961,606.70/778,973.59
  6. Step 6: Final answer
    x = 630,471.90

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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.