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Finding the Fourth Proportional to 615,095.70, 922,643.55 and 565,329.30

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Solution

The fourth proportional to 615,095.70, 922,643.55 and 565,329.30 is: 847,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,095.70 : 922,643.55 = 565,329.30 : x
  2. Step 2: Convert to fraction form
    615,095.70/922,643.55 = 565,329.30/x
  3. Step 3: Cross multiply
    615,095.70x = 922,643.55 × 565,329.30
  4. Step 4: Simplify right side
    615,095.70x = 521,597,432,271.02
  5. Step 5: Solve for x
    x = 521,597,432,271.02/615,095.70
  6. Step 6: Final answer
    x = 847,993.95

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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.