Home / 1,141,430.86-1,712,259.51-421,961.05

Finding the Fourth Proportional to 1,141,430.86, 1,712,259.51 and 421,961.05

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Solution

The fourth proportional to 1,141,430.86, 1,712,259.51 and 421,961.05 is: 632,983.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141,430.86 : 1,712,259.51 = 421,961.05 : x
  2. Step 2: Convert to fraction form
    1,141,430.86/1,712,259.51 = 421,961.05/x
  3. Step 3: Cross multiply
    1,141,430.86x = 1,712,259.51 × 421,961.05
  4. Step 4: Simplify right side
    1,141,430.86x = 722,506,820,712.09
  5. Step 5: Solve for x
    x = 722,506,820,712.09/1,141,430.86
  6. Step 6: Final answer
    x = 632,983.43

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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.