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Finding the Fourth Proportional to 640,089.37, 960,272.45 and 340,526.41

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Solution

The fourth proportional to 640,089.37, 960,272.45 and 340,526.41 is: 510,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,089.37 : 960,272.45 = 340,526.41 : x
  2. Step 2: Convert to fraction form
    640,089.37/960,272.45 = 340,526.41/x
  3. Step 3: Cross multiply
    640,089.37x = 960,272.45 × 340,526.41
  4. Step 4: Simplify right side
    640,089.37x = 326,998,130,020.41
  5. Step 5: Solve for x
    x = 326,998,130,020.41/640,089.37
  6. Step 6: Final answer
    x = 510,863.24

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1.5x scale

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.