Home / 775,400.90-1,069,895.13-453,048.74

Finding the Fourth Proportional to 775,400.90, 1,069,895.13 and 453,048.74

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Solution

The fourth proportional to 775,400.90, 1,069,895.13 and 453,048.74 is: 625,114.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,400.90 : 1,069,895.13 = 453,048.74 : x
  2. Step 2: Convert to fraction form
    775,400.90/1,069,895.13 = 453,048.74/x
  3. Step 3: Cross multiply
    775,400.90x = 1,069,895.13 × 453,048.74
  4. Step 4: Simplify right side
    775,400.90x = 484,714,646,108.89
  5. Step 5: Solve for x
    x = 484,714,646,108.89/775,400.90
  6. Step 6: Final answer
    x = 625,114.89

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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.