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Finding the Fourth Proportional to 636,983.51, 879,010.85 and 346,596.27

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Solution

The fourth proportional to 636,983.51, 879,010.85 and 346,596.27 is: 478,288.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,983.51 : 879,010.85 = 346,596.27 : x
  2. Step 2: Convert to fraction form
    636,983.51/879,010.85 = 346,596.27/x
  3. Step 3: Cross multiply
    636,983.51x = 879,010.85 × 346,596.27
  4. Step 4: Simplify right side
    636,983.51x = 304,661,880,166.55
  5. Step 5: Solve for x
    x = 304,661,880,166.55/636,983.51
  6. Step 6: Final answer
    x = 478,288.49

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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.