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Finding the Fourth Proportional to 648,967.87, 895,570.14 and 358,578.46

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Solution

The fourth proportional to 648,967.87, 895,570.14 and 358,578.46 is: 494,835.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,967.87 : 895,570.14 = 358,578.46 : x
  2. Step 2: Convert to fraction form
    648,967.87/895,570.14 = 358,578.46/x
  3. Step 3: Cross multiply
    648,967.87x = 895,570.14 × 358,578.46
  4. Step 4: Simplify right side
    648,967.87x = 321,132,161,623.18
  5. Step 5: Solve for x
    x = 321,132,161,623.18/648,967.87
  6. Step 6: Final answer
    x = 494,835.22

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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.