Home / 738,296.25-1,018,849.52-398,764.50

Finding the Fourth Proportional to 738,296.25, 1,018,849.52 and 398,764.50

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Solution

The fourth proportional to 738,296.25, 1,018,849.52 and 398,764.50 is: 550,295.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,296.25 : 1,018,849.52 = 398,764.50 : x
  2. Step 2: Convert to fraction form
    738,296.25/1,018,849.52 = 398,764.50/x
  3. Step 3: Cross multiply
    738,296.25x = 1,018,849.52 × 398,764.50
  4. Step 4: Simplify right side
    738,296.25x = 406,281,017,424.22
  5. Step 5: Solve for x
    x = 406,281,017,424.22/738,296.25
  6. Step 6: Final answer
    x = 550,295.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.