Home / 1,142,309.80-1,712,946.30-432,101.80

Finding the Fourth Proportional to 1,142,309.80, 1,712,946.30 and 432,101.80

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Solution

The fourth proportional to 1,142,309.80, 1,712,946.30 and 432,101.80 is: 647,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,309.80 : 1,712,946.30 = 432,101.80 : x
  2. Step 2: Convert to fraction form
    1,142,309.80/1,712,946.30 = 432,101.80/x
  3. Step 3: Cross multiply
    1,142,309.80x = 1,712,946.30 × 432,101.80
  4. Step 4: Simplify right side
    1,142,309.80x = 740,167,179,533.34
  5. Step 5: Solve for x
    x = 740,167,179,533.34/1,142,309.80
  6. Step 6: Final answer
    x = 647,956.60

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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.