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Finding the Fourth Proportional to 529,586.48, 730,830.66 and 287,868.62

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Solution

The fourth proportional to 529,586.48, 730,830.66 and 287,868.62 is: 397,259.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,586.48 : 730,830.66 = 287,868.62 : x
  2. Step 2: Convert to fraction form
    529,586.48/730,830.66 = 287,868.62/x
  3. Step 3: Cross multiply
    529,586.48x = 730,830.66 × 287,868.62
  4. Step 4: Simplify right side
    529,586.48x = 210,383,213,547.89
  5. Step 5: Solve for x
    x = 210,383,213,547.89/529,586.48
  6. Step 6: Final answer
    x = 397,259.41

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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.