Home / 840,106.69-1,159,008.49-486,254.73

Finding the Fourth Proportional to 840,106.69, 1,159,008.49 and 486,254.73

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Solution

The fourth proportional to 840,106.69, 1,159,008.49 and 486,254.73 is: 670,835.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,106.69 : 1,159,008.49 = 486,254.73 : x
  2. Step 2: Convert to fraction form
    840,106.69/1,159,008.49 = 486,254.73/x
  3. Step 3: Cross multiply
    840,106.69x = 1,159,008.49 × 486,254.73
  4. Step 4: Simplify right side
    840,106.69x = 563,573,360,372.66
  5. Step 5: Solve for x
    x = 563,573,360,372.66/840,106.69
  6. Step 6: Final answer
    x = 670,835.46

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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.