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Finding the Fourth Proportional to 614,880, 848,534.40 and 346,608

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Solution

The fourth proportional to 614,880, 848,534.40 and 346,608 is: 478,319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,880 : 848,534.40 = 346,608 : x
  2. Step 2: Convert to fraction form
    614,880/848,534.40 = 346,608/x
  3. Step 3: Cross multiply
    614,880x = 848,534.40 × 346,608
  4. Step 4: Simplify right side
    614,880x = 294,108,811,315.20
  5. Step 5: Solve for x
    x = 294,108,811,315.20/614,880
  6. Step 6: Final answer
    x = 478,319.04

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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.