Home / 872,458.42-1,203,994.50-490,488.34

Finding the Fourth Proportional to 872,458.42, 1,203,994.50 and 490,488.34

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Solution

The fourth proportional to 872,458.42, 1,203,994.50 and 490,488.34 is: 676,874.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,458.42 : 1,203,994.50 = 490,488.34 : x
  2. Step 2: Convert to fraction form
    872,458.42/1,203,994.50 = 490,488.34/x
  3. Step 3: Cross multiply
    872,458.42x = 1,203,994.50 × 490,488.34
  4. Step 4: Simplify right side
    872,458.42x = 590,545,263,674.13
  5. Step 5: Solve for x
    x = 590,545,263,674.13/872,458.42
  6. Step 6: Final answer
    x = 676,874.97

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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.