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Finding the Fourth Proportional to 626,314.14, 864,537.66 and 371,665.32

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Solution

The fourth proportional to 626,314.14, 864,537.66 and 371,665.32 is: 513,031.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,314.14 : 864,537.66 = 371,665.32 : x
  2. Step 2: Convert to fraction form
    626,314.14/864,537.66 = 371,665.32/x
  3. Step 3: Cross multiply
    626,314.14x = 864,537.66 × 371,665.32
  4. Step 4: Simplify right side
    626,314.14x = 321,318,666,055.95
  5. Step 5: Solve for x
    x = 321,318,666,055.95/626,314.14
  6. Step 6: Final answer
    x = 513,031.15

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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.