Home / 778,973.56-1,075,162.87-456,787.45

Finding the Fourth Proportional to 778,973.56, 1,075,162.87 and 456,787.45

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Solution

The fourth proportional to 778,973.56, 1,075,162.87 and 456,787.45 is: 630,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,973.56 : 1,075,162.87 = 456,787.45 : x
  2. Step 2: Convert to fraction form
    778,973.56/1,075,162.87 = 456,787.45/x
  3. Step 3: Cross multiply
    778,973.56x = 1,075,162.87 × 456,787.45
  4. Step 4: Simplify right side
    778,973.56x = 491,120,908,392.90
  5. Step 5: Solve for x
    x = 491,120,908,392.90/778,973.56
  6. Step 6: Final answer
    x = 630,471.86

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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.