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Finding the Fourth Proportional to 524,702.40, 787,442.40 and 384,734.40

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Solution

The fourth proportional to 524,702.40, 787,442.40 and 384,734.40 is: 577,386.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,702.40 : 787,442.40 = 384,734.40 : x
  2. Step 2: Convert to fraction form
    524,702.40/787,442.40 = 384,734.40/x
  3. Step 3: Cross multiply
    524,702.40x = 787,442.40 × 384,734.40
  4. Step 4: Simplify right side
    524,702.40x = 302,956,179,298.56
  5. Step 5: Solve for x
    x = 302,956,179,298.56/524,702.40
  6. Step 6: Final answer
    x = 577,386.68

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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.