Home / 1,298,158.12-1,947,012.54-351,307.72

Finding the Fourth Proportional to 1,298,158.12, 1,947,012.54 and 351,307.72

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Solution

The fourth proportional to 1,298,158.12, 1,947,012.54 and 351,307.72 is: 526,900.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,158.12 : 1,947,012.54 = 351,307.72 : x
  2. Step 2: Convert to fraction form
    1,298,158.12/1,947,012.54 = 351,307.72/x
  3. Step 3: Cross multiply
    1,298,158.12x = 1,947,012.54 × 351,307.72
  4. Step 4: Simplify right side
    1,298,158.12x = 684,000,536,238.81
  5. Step 5: Solve for x
    x = 684,000,536,238.81/1,298,158.12
  6. Step 6: Final answer
    x = 526,900.79

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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.