Home / 976,905.40-1,465,358.10-858,807.40

Finding the Fourth Proportional to 976,905.40, 1,465,358.10 and 858,807.40

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Solution

The fourth proportional to 976,905.40, 1,465,358.10 and 858,807.40 is: 1,288,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,905.40 : 1,465,358.10 = 858,807.40 : x
  2. Step 2: Convert to fraction form
    976,905.40/1,465,358.10 = 858,807.40/x
  3. Step 3: Cross multiply
    976,905.40x = 1,465,358.10 × 858,807.40
  4. Step 4: Simplify right side
    976,905.40x = 1,258,460,379,929.94
  5. Step 5: Solve for x
    x = 1,258,460,379,929.94/976,905.40
  6. Step 6: Final answer
    x = 1,288,211.10

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1.5x scale

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.