Home / 990,938.30-1,486,385.82-317,017.58

Finding the Fourth Proportional to 990,938.30, 1,486,385.82 and 317,017.58

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Solution

The fourth proportional to 990,938.30, 1,486,385.82 and 317,017.58 is: 475,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,938.30 : 1,486,385.82 = 317,017.58 : x
  2. Step 2: Convert to fraction form
    990,938.30/1,486,385.82 = 317,017.58/x
  3. Step 3: Cross multiply
    990,938.30x = 1,486,385.82 × 317,017.58
  4. Step 4: Simplify right side
    990,938.30x = 471,210,435,602.72
  5. Step 5: Solve for x
    x = 471,210,435,602.72/990,938.30
  6. Step 6: Final answer
    x = 475,519.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.