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Finding the Fourth Proportional to 659,880.50, 910,637.52 and 358,074.50

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Solution

The fourth proportional to 659,880.50, 910,637.52 and 358,074.50 is: 494,144.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,880.50 : 910,637.52 = 358,074.50 : x
  2. Step 2: Convert to fraction form
    659,880.50/910,637.52 = 358,074.50/x
  3. Step 3: Cross multiply
    659,880.50x = 910,637.52 × 358,074.50
  4. Step 4: Simplify right side
    659,880.50x = 326,076,074,655.24
  5. Step 5: Solve for x
    x = 326,076,074,655.24/659,880.50
  6. Step 6: Final answer
    x = 494,144.13

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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.