Home / 1,315,307.58-1,973,116.89-416,790.78

Finding the Fourth Proportional to 1,315,307.58, 1,973,116.89 and 416,790.78

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Solution

The fourth proportional to 1,315,307.58, 1,973,116.89 and 416,790.78 is: 625,235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,307.58 : 1,973,116.89 = 416,790.78 : x
  2. Step 2: Convert to fraction form
    1,315,307.58/1,973,116.89 = 416,790.78/x
  3. Step 3: Cross multiply
    1,315,307.58x = 1,973,116.89 × 416,790.78
  4. Step 4: Simplify right side
    1,315,307.58x = 822,376,927,614.27
  5. Step 5: Solve for x
    x = 822,376,927,614.27/1,315,307.58
  6. Step 6: Final answer
    x = 625,235.45

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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.