Home / 917,019.40-1,372,904.70-812,043.40

Finding the Fourth Proportional to 917,019.40, 1,372,904.70 and 812,043.40

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Solution

The fourth proportional to 917,019.40, 1,372,904.70 and 812,043.40 is: 1,215,741.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,019.40 : 1,372,904.70 = 812,043.40 : x
  2. Step 2: Convert to fraction form
    917,019.40/1,372,904.70 = 812,043.40/x
  3. Step 3: Cross multiply
    917,019.40x = 1,372,904.70 × 812,043.40
  4. Step 4: Simplify right side
    917,019.40x = 1,114,858,200,463.98
  5. Step 5: Solve for x
    x = 1,114,858,200,463.98/917,019.40
  6. Step 6: Final answer
    x = 1,215,741.13

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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.