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Finding the Fourth Proportional to 578,756.98, 798,418.74 and 374,875.93

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Solution

The fourth proportional to 578,756.98, 798,418.74 and 374,875.93 is: 517,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,756.98 : 798,418.74 = 374,875.93 : x
  2. Step 2: Convert to fraction form
    578,756.98/798,418.74 = 374,875.93/x
  3. Step 3: Cross multiply
    578,756.98x = 798,418.74 × 374,875.93
  4. Step 4: Simplify right side
    578,756.98x = 299,307,967,686.93
  5. Step 5: Solve for x
    x = 299,307,967,686.93/578,756.98
  6. Step 6: Final answer
    x = 517,156.56

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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.