Home / 738,360.72-1,018,938.24-398,829

Finding the Fourth Proportional to 738,360.72, 1,018,938.24 and 398,829

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Solution

The fourth proportional to 738,360.72, 1,018,938.24 and 398,829 is: 550,384.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,360.72 : 1,018,938.24 = 398,829 : x
  2. Step 2: Convert to fraction form
    738,360.72/1,018,938.24 = 398,829/x
  3. Step 3: Cross multiply
    738,360.72x = 1,018,938.24 × 398,829
  4. Step 4: Simplify right side
    738,360.72x = 406,382,119,320.96
  5. Step 5: Solve for x
    x = 406,382,119,320.96/738,360.72
  6. Step 6: Final answer
    x = 550,384.26

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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.