Home / 1,142,308.80-1,712,944.80-432,100.80

Finding the Fourth Proportional to 1,142,308.80, 1,712,944.80 and 432,100.80

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Solution

The fourth proportional to 1,142,308.80, 1,712,944.80 and 432,100.80 is: 647,955.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,308.80 : 1,712,944.80 = 432,100.80 : x
  2. Step 2: Convert to fraction form
    1,142,308.80/1,712,944.80 = 432,100.80/x
  3. Step 3: Cross multiply
    1,142,308.80x = 1,712,944.80 × 432,100.80
  4. Step 4: Simplify right side
    1,142,308.80x = 740,164,818,435.84
  5. Step 5: Solve for x
    x = 740,164,818,435.84/1,142,308.80
  6. Step 6: Final answer
    x = 647,955.10

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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.