Home / 690,674.46-1,036,152.34-291,316.72

Finding the Fourth Proportional to 690,674.46, 1,036,152.34 and 291,316.72

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Solution

The fourth proportional to 690,674.46, 1,036,152.34 and 291,316.72 is: 437,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,674.46 : 1,036,152.34 = 291,316.72 : x
  2. Step 2: Convert to fraction form
    690,674.46/1,036,152.34 = 291,316.72/x
  3. Step 3: Cross multiply
    690,674.46x = 1,036,152.34 × 291,316.72
  4. Step 4: Simplify right side
    690,674.46x = 301,848,501,109.13
  5. Step 5: Solve for x
    x = 301,848,501,109.13/690,674.46
  6. Step 6: Final answer
    x = 437,034.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.