Home / 1,378,703.48-1,902,565.13-766,838.93

Finding the Fourth Proportional to 1,378,703.48, 1,902,565.13 and 766,838.93

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Solution

The fourth proportional to 1,378,703.48, 1,902,565.13 and 766,838.93 is: 1,058,212.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,703.48 : 1,902,565.13 = 766,838.93 : x
  2. Step 2: Convert to fraction form
    1,378,703.48/1,902,565.13 = 766,838.93/x
  3. Step 3: Cross multiply
    1,378,703.48x = 1,902,565.13 × 766,838.93
  4. Step 4: Simplify right side
    1,378,703.48x = 1,458,960,995,197.49
  5. Step 5: Solve for x
    x = 1,458,960,995,197.49/1,378,703.48
  6. Step 6: Final answer
    x = 1,058,212.31

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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.