Home / 1,421,449.36-1,961,595.43-776,869.38

Finding the Fourth Proportional to 1,421,449.36, 1,961,595.43 and 776,869.38

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Solution

The fourth proportional to 1,421,449.36, 1,961,595.43 and 776,869.38 is: 1,072,077.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,449.36 : 1,961,595.43 = 776,869.38 : x
  2. Step 2: Convert to fraction form
    1,421,449.36/1,961,595.43 = 776,869.38/x
  3. Step 3: Cross multiply
    1,421,449.36x = 1,961,595.43 × 776,869.38
  4. Step 4: Simplify right side
    1,421,449.36x = 1,523,903,423,572.76
  5. Step 5: Solve for x
    x = 1,523,903,423,572.76/1,421,449.36
  6. Step 6: Final answer
    x = 1,072,077.18

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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.