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Finding the Fourth Proportional to 524,264.40, 786,979.80 and 288,068.40

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Solution

The fourth proportional to 524,264.40, 786,979.80 and 288,068.40 is: 432,423.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,264.40 : 786,979.80 = 288,068.40 : x
  2. Step 2: Convert to fraction form
    524,264.40/786,979.80 = 288,068.40/x
  3. Step 3: Cross multiply
    524,264.40x = 786,979.80 × 288,068.40
  4. Step 4: Simplify right side
    524,264.40x = 226,704,011,818.32
  5. Step 5: Solve for x
    x = 226,704,011,818.32/524,264.40
  6. Step 6: Final answer
    x = 432,423.05

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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.