Home / 877,854.12-1,211,434.94-490,669.02

Finding the Fourth Proportional to 877,854.12, 1,211,434.94 and 490,669.02

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Solution

The fourth proportional to 877,854.12, 1,211,434.94 and 490,669.02 is: 677,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,854.12 : 1,211,434.94 = 490,669.02 : x
  2. Step 2: Convert to fraction form
    877,854.12/1,211,434.94 = 490,669.02/x
  3. Step 3: Cross multiply
    877,854.12x = 1,211,434.94 × 490,669.02
  4. Step 4: Simplify right side
    877,854.12x = 594,413,594,803.56
  5. Step 5: Solve for x
    x = 594,413,594,803.56/877,854.12
  6. Step 6: Final answer
    x = 677,121.15

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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.