Home / 1,343,990.34-1,854,705.85-740,378.34

Finding the Fourth Proportional to 1,343,990.34, 1,854,705.85 and 740,378.34

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Solution

The fourth proportional to 1,343,990.34, 1,854,705.85 and 740,378.34 is: 1,021,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,990.34 : 1,854,705.85 = 740,378.34 : x
  2. Step 2: Convert to fraction form
    1,343,990.34/1,854,705.85 = 740,378.34/x
  3. Step 3: Cross multiply
    1,343,990.34x = 1,854,705.85 × 740,378.34
  4. Step 4: Simplify right side
    1,343,990.34x = 1,373,184,038,411.29
  5. Step 5: Solve for x
    x = 1,373,184,038,411.29/1,343,990.34
  6. Step 6: Final answer
    x = 1,021,721.66

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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.