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Finding the Fourth Proportional to 626,314.95, 864,303.30 and 381,210.93

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Solution

The fourth proportional to 626,314.95, 864,303.30 and 381,210.93 is: 526,064.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,314.95 : 864,303.30 = 381,210.93 : x
  2. Step 2: Convert to fraction form
    626,314.95/864,303.30 = 381,210.93/x
  3. Step 3: Cross multiply
    626,314.95x = 864,303.30 × 381,210.93
  4. Step 4: Simplify right side
    626,314.95x = 329,481,864,795.07
  5. Step 5: Solve for x
    x = 329,481,864,795.07/626,314.95
  6. Step 6: Final answer
    x = 526,064.19

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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.