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Finding the Fourth Proportional to 1,048,431, 1,572,647.58 and 260,463

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Solution

The fourth proportional to 1,048,431, 1,572,647.58 and 260,463 is: 390,694.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,431 : 1,572,647.58 = 260,463 : x
  2. Step 2: Convert to fraction form
    1,048,431/1,572,647.58 = 260,463/x
  3. Step 3: Cross multiply
    1,048,431x = 1,572,647.58 × 260,463
  4. Step 4: Simplify right side
    1,048,431x = 409,616,506,629.54
  5. Step 5: Solve for x
    x = 409,616,506,629.54/1,048,431
  6. Step 6: Final answer
    x = 390,694.77

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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.