Home / 738,072.30-1,106,780.40-288,643.80

Finding the Fourth Proportional to 738,072.30, 1,106,780.40 and 288,643.80

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Solution

The fourth proportional to 738,072.30, 1,106,780.40 and 288,643.80 is: 432,837.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,072.30 : 1,106,780.40 = 288,643.80 : x
  2. Step 2: Convert to fraction form
    738,072.30/1,106,780.40 = 288,643.80/x
  3. Step 3: Cross multiply
    738,072.30x = 1,106,780.40 × 288,643.80
  4. Step 4: Simplify right side
    738,072.30x = 319,465,300,421.52
  5. Step 5: Solve for x
    x = 319,465,300,421.52/738,072.30
  6. Step 6: Final answer
    x = 432,837.41

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1.5x scale

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.