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Finding the Fourth Proportional to 663,368.64, 915,579.40 and 462,048

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Solution

The fourth proportional to 663,368.64, 915,579.40 and 462,048 is: 637,717.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,368.64 : 915,579.40 = 462,048 : x
  2. Step 2: Convert to fraction form
    663,368.64/915,579.40 = 462,048/x
  3. Step 3: Cross multiply
    663,368.64x = 915,579.40 × 462,048
  4. Step 4: Simplify right side
    663,368.64x = 423,041,630,611.20
  5. Step 5: Solve for x
    x = 423,041,630,611.20/663,368.64
  6. Step 6: Final answer
    x = 637,717.26

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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.