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Finding the Fourth Proportional to 1,315,488, 1,973,232 and 429,024

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Solution

The fourth proportional to 1,315,488, 1,973,232 and 429,024 is: 643,536

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,488 : 1,973,232 = 429,024 : x
  2. Step 2: Convert to fraction form
    1,315,488/1,973,232 = 429,024/x
  3. Step 3: Cross multiply
    1,315,488x = 1,973,232 × 429,024
  4. Step 4: Simplify right side
    1,315,488x = 846,563,885,568
  5. Step 5: Solve for x
    x = 846,563,885,568/1,315,488
  6. Step 6: Final answer
    x = 643,536

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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.