Home / 717,246-1,075,061.61-312,778.58

Finding the Fourth Proportional to 717,246, 1,075,061.61 and 312,778.58

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Solution

The fourth proportional to 717,246, 1,075,061.61 and 312,778.58 is: 468,815.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,246 : 1,075,061.61 = 312,778.58 : x
  2. Step 2: Convert to fraction form
    717,246/1,075,061.61 = 312,778.58/x
  3. Step 3: Cross multiply
    717,246x = 1,075,061.61 × 312,778.58
  4. Step 4: Simplify right side
    717,246x = 336,256,238,413.01
  5. Step 5: Solve for x
    x = 336,256,238,413.01/717,246
  6. Step 6: Final answer
    x = 468,815.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.