Home / 1,178,875.24-1,768,657.90-380,140.72

Finding the Fourth Proportional to 1,178,875.24, 1,768,657.90 and 380,140.72

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Solution

The fourth proportional to 1,178,875.24, 1,768,657.90 and 380,140.72 is: 570,322.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,875.24 : 1,768,657.90 = 380,140.72 : x
  2. Step 2: Convert to fraction form
    1,178,875.24/1,768,657.90 = 380,140.72/x
  3. Step 3: Cross multiply
    1,178,875.24x = 1,768,657.90 × 380,140.72
  4. Step 4: Simplify right side
    1,178,875.24x = 672,338,887,539.69
  5. Step 5: Solve for x
    x = 672,338,887,539.69/1,178,875.24
  6. Step 6: Final answer
    x = 570,322.34

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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.