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Finding the Fourth Proportional to 570,170.48, 786,315.48 and 489,572.72

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Solution

The fourth proportional to 570,170.48, 786,315.48 and 489,572.72 is: 675,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,170.48 : 786,315.48 = 489,572.72 : x
  2. Step 2: Convert to fraction form
    570,170.48/786,315.48 = 489,572.72/x
  3. Step 3: Cross multiply
    570,170.48x = 786,315.48 × 489,572.72
  4. Step 4: Simplify right side
    570,170.48x = 384,958,608,321.71
  5. Step 5: Solve for x
    x = 384,958,608,321.71/570,170.48
  6. Step 6: Final answer
    x = 675,164.05

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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.