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Finding the Fourth Proportional to 620,587.32, 930,750.28 and 283,532.28

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Solution

The fourth proportional to 620,587.32, 930,750.28 and 283,532.28 is: 425,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,587.32 : 930,750.28 = 283,532.28 : x
  2. Step 2: Convert to fraction form
    620,587.32/930,750.28 = 283,532.28/x
  3. Step 3: Cross multiply
    620,587.32x = 930,750.28 × 283,532.28
  4. Step 4: Simplify right side
    620,587.32x = 263,897,748,999.04
  5. Step 5: Solve for x
    x = 263,897,748,999.04/620,587.32
  6. Step 6: Final answer
    x = 425,238.71

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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.