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Finding the Fourth Proportional to 570,218.76, 786,895.88 and 308,568.32

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Solution

The fourth proportional to 570,218.76, 786,895.88 and 308,568.32 is: 425,821.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,218.76 : 786,895.88 = 308,568.32 : x
  2. Step 2: Convert to fraction form
    570,218.76/786,895.88 = 308,568.32/x
  3. Step 3: Cross multiply
    570,218.76x = 786,895.88 × 308,568.32
  4. Step 4: Simplify right side
    570,218.76x = 242,811,139,706.52
  5. Step 5: Solve for x
    x = 242,811,139,706.52/570,218.76
  6. Step 6: Final answer
    x = 425,821.03

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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.