Home / 448,191.36-618,263.55-286,872.84

Finding the Fourth Proportional to 448,191.36, 618,263.55 and 286,872.84

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Solution

The fourth proportional to 448,191.36, 618,263.55 and 286,872.84 is: 395,730.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,191.36 : 618,263.55 = 286,872.84 : x
  2. Step 2: Convert to fraction form
    448,191.36/618,263.55 = 286,872.84/x
  3. Step 3: Cross multiply
    448,191.36x = 618,263.55 × 286,872.84
  4. Step 4: Simplify right side
    448,191.36x = 177,363,020,456.98
  5. Step 5: Solve for x
    x = 177,363,020,456.98/448,191.36
  6. Step 6: Final answer
    x = 395,730.57

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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.