Home / 1,420,703.34-1,960,599.54-776,165.28

Finding the Fourth Proportional to 1,420,703.34, 1,960,599.54 and 776,165.28

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Solution

The fourth proportional to 1,420,703.34, 1,960,599.54 and 776,165.28 is: 1,071,123.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,703.34 : 1,960,599.54 = 776,165.28 : x
  2. Step 2: Convert to fraction form
    1,420,703.34/1,960,599.54 = 776,165.28/x
  3. Step 3: Cross multiply
    1,420,703.34x = 1,960,599.54 × 776,165.28
  4. Step 4: Simplify right side
    1,420,703.34x = 1,521,749,290,931.97
  5. Step 5: Solve for x
    x = 1,521,749,290,931.97/1,420,703.34
  6. Step 6: Final answer
    x = 1,071,123.89

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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.