Home / 738,090.30-1,106,807.40-288,661.80

Finding the Fourth Proportional to 738,090.30, 1,106,807.40 and 288,661.80

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Solution

The fourth proportional to 738,090.30, 1,106,807.40 and 288,661.80 is: 432,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,090.30 : 1,106,807.40 = 288,661.80 : x
  2. Step 2: Convert to fraction form
    738,090.30/1,106,807.40 = 288,661.80/x
  3. Step 3: Cross multiply
    738,090.30x = 1,106,807.40 × 288,661.80
  4. Step 4: Simplify right side
    738,090.30x = 319,493,016,337.32
  5. Step 5: Solve for x
    x = 319,493,016,337.32/738,090.30
  6. Step 6: Final answer
    x = 432,864.40

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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.