Home / 525,285.90-724,897.53-298,931.40

Finding the Fourth Proportional to 525,285.90, 724,897.53 and 298,931.40

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Solution

The fourth proportional to 525,285.90, 724,897.53 and 298,931.40 is: 412,527.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,285.90 : 724,897.53 = 298,931.40 : x
  2. Step 2: Convert to fraction form
    525,285.90/724,897.53 = 298,931.40/x
  3. Step 3: Cross multiply
    525,285.90x = 724,897.53 × 298,931.40
  4. Step 4: Simplify right side
    525,285.90x = 216,694,633,499.44
  5. Step 5: Solve for x
    x = 216,694,633,499.44/525,285.90
  6. Step 6: Final answer
    x = 412,527.03

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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.