Home / 778,819.72-1,074,785.22-456,762.16

Finding the Fourth Proportional to 778,819.72, 1,074,785.22 and 456,762.16

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Solution

The fourth proportional to 778,819.72, 1,074,785.22 and 456,762.16 is: 630,340.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,819.72 : 1,074,785.22 = 456,762.16 : x
  2. Step 2: Convert to fraction form
    778,819.72/1,074,785.22 = 456,762.16/x
  3. Step 3: Cross multiply
    778,819.72x = 1,074,785.22 × 456,762.16
  4. Step 4: Simplify right side
    778,819.72x = 490,921,218,623.28
  5. Step 5: Solve for x
    x = 490,921,218,623.28/778,819.72
  6. Step 6: Final answer
    x = 630,340.00

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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.