Home / 738,355.80-1,107,205.65-288,927.30

Finding the Fourth Proportional to 738,355.80, 1,107,205.65 and 288,927.30

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Solution

The fourth proportional to 738,355.80, 1,107,205.65 and 288,927.30 is: 433,262.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,355.80 : 1,107,205.65 = 288,927.30 : x
  2. Step 2: Convert to fraction form
    738,355.80/1,107,205.65 = 288,927.30/x
  3. Step 3: Cross multiply
    738,355.80x = 1,107,205.65 × 288,927.30
  4. Step 4: Simplify right side
    738,355.80x = 319,901,938,999.25
  5. Step 5: Solve for x
    x = 319,901,938,999.25/738,355.80
  6. Step 6: Final answer
    x = 433,262.58

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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.