Home / 1,178,641.40-1,768,091.70-430,849.40

Finding the Fourth Proportional to 1,178,641.40, 1,768,091.70 and 430,849.40

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Solution

The fourth proportional to 1,178,641.40, 1,768,091.70 and 430,849.40 is: 646,321.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,641.40 : 1,768,091.70 = 430,849.40 : x
  2. Step 2: Convert to fraction form
    1,178,641.40/1,768,091.70 = 430,849.40/x
  3. Step 3: Cross multiply
    1,178,641.40x = 1,768,091.70 × 430,849.40
  4. Step 4: Simplify right side
    1,178,641.40x = 761,781,248,089.98
  5. Step 5: Solve for x
    x = 761,781,248,089.98/1,178,641.40
  6. Step 6: Final answer
    x = 646,321.47

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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.