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Finding the Fourth Proportional to 537,803.55, 742,140.72 and 296,038.90

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Solution

The fourth proportional to 537,803.55, 742,140.72 and 296,038.90 is: 408,518.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,803.55 : 742,140.72 = 296,038.90 : x
  2. Step 2: Convert to fraction form
    537,803.55/742,140.72 = 296,038.90/x
  3. Step 3: Cross multiply
    537,803.55x = 742,140.72 × 296,038.90
  4. Step 4: Simplify right side
    537,803.55x = 219,702,522,394.01
  5. Step 5: Solve for x
    x = 219,702,522,394.01/537,803.55
  6. Step 6: Final answer
    x = 408,518.17

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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.