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Finding the Fourth Proportional to 578,857.86, 798,384.54 and 507,113.34

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Solution

The fourth proportional to 578,857.86, 798,384.54 and 507,113.34 is: 699,431.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,857.86 : 798,384.54 = 507,113.34 : x
  2. Step 2: Convert to fraction form
    578,857.86/798,384.54 = 507,113.34/x
  3. Step 3: Cross multiply
    578,857.86x = 798,384.54 × 507,113.34
  4. Step 4: Simplify right side
    578,857.86x = 404,871,450,683.76
  5. Step 5: Solve for x
    x = 404,871,450,683.76/578,857.86
  6. Step 6: Final answer
    x = 699,431.55

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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.