Home / 1,057,366.70-1,455,478.31-912,631.67

Finding the Fourth Proportional to 1,057,366.70, 1,455,478.31 and 912,631.67

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Solution

The fourth proportional to 1,057,366.70, 1,455,478.31 and 912,631.67 is: 1,256,248.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,366.70 : 1,455,478.31 = 912,631.67 : x
  2. Step 2: Convert to fraction form
    1,057,366.70/1,455,478.31 = 912,631.67/x
  3. Step 3: Cross multiply
    1,057,366.70x = 1,455,478.31 × 912,631.67
  4. Step 4: Simplify right side
    1,057,366.70x = 1,328,315,596,140.92
  5. Step 5: Solve for x
    x = 1,328,315,596,140.92/1,057,366.70
  6. Step 6: Final answer
    x = 1,256,248.75

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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.