Home / 778,731.20-1,074,878.88-456,511.04

Finding the Fourth Proportional to 778,731.20, 1,074,878.88 and 456,511.04

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Solution

The fourth proportional to 778,731.20, 1,074,878.88 and 456,511.04 is: 630,119.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,731.20 : 1,074,878.88 = 456,511.04 : x
  2. Step 2: Convert to fraction form
    778,731.20/1,074,878.88 = 456,511.04/x
  3. Step 3: Cross multiply
    778,731.20x = 1,074,878.88 × 456,511.04
  4. Step 4: Simplify right side
    778,731.20x = 490,694,075,382.84
  5. Step 5: Solve for x
    x = 490,694,075,382.84/778,731.20
  6. Step 6: Final answer
    x = 630,119.96

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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.