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Finding the Fourth Proportional to 563,343.36, 840,647.32 and 503,520

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Solution

The fourth proportional to 563,343.36, 840,647.32 and 503,520 is: 751,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,343.36 : 840,647.32 = 503,520 : x
  2. Step 2: Convert to fraction form
    563,343.36/840,647.32 = 503,520/x
  3. Step 3: Cross multiply
    563,343.36x = 840,647.32 × 503,520
  4. Step 4: Simplify right side
    563,343.36x = 423,282,738,566.40
  5. Step 5: Solve for x
    x = 423,282,738,566.40/563,343.36
  6. Step 6: Final answer
    x = 751,376.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.