Home / 738,366.72-1,018,946.52-398,835

Finding the Fourth Proportional to 738,366.72, 1,018,946.52 and 398,835

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Solution

The fourth proportional to 738,366.72, 1,018,946.52 and 398,835 is: 550,392.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,366.72 : 1,018,946.52 = 398,835 : x
  2. Step 2: Convert to fraction form
    738,366.72/1,018,946.52 = 398,835/x
  3. Step 3: Cross multiply
    738,366.72x = 1,018,946.52 × 398,835
  4. Step 4: Simplify right side
    738,366.72x = 406,391,535,304.20
  5. Step 5: Solve for x
    x = 406,391,535,304.20/738,366.72
  6. Step 6: Final answer
    x = 550,392.54

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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.