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Finding the Fourth Proportional to 528,587, 729,450.44 and 286,869.52

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Solution

The fourth proportional to 528,587, 729,450.44 and 286,869.52 is: 395,880.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,587 : 729,450.44 = 286,869.52 : x
  2. Step 2: Convert to fraction form
    528,587/729,450.44 = 286,869.52/x
  3. Step 3: Cross multiply
    528,587x = 729,450.44 × 286,869.52
  4. Step 4: Simplify right side
    528,587x = 209,257,097,586.59
  5. Step 5: Solve for x
    x = 209,257,097,586.59/528,587
  6. Step 6: Final answer
    x = 395,880.14

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1.5x scale

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.