Home / 1,178,493.20-1,767,739.80-430,830.80

Finding the Fourth Proportional to 1,178,493.20, 1,767,739.80 and 430,830.80

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Solution

The fourth proportional to 1,178,493.20, 1,767,739.80 and 430,830.80 is: 646,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,493.20 : 1,767,739.80 = 430,830.80 : x
  2. Step 2: Convert to fraction form
    1,178,493.20/1,767,739.80 = 430,830.80/x
  3. Step 3: Cross multiply
    1,178,493.20x = 1,767,739.80 × 430,830.80
  4. Step 4: Simplify right side
    1,178,493.20x = 761,596,752,225.84
  5. Step 5: Solve for x
    x = 761,596,752,225.84/1,178,493.20
  6. Step 6: Final answer
    x = 646,246.20

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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.