Home / 724,598.98-999,977.85-402,309.14

Finding the Fourth Proportional to 724,598.98, 999,977.85 and 402,309.14

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Solution

The fourth proportional to 724,598.98, 999,977.85 and 402,309.14 is: 555,203.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,598.98 : 999,977.85 = 402,309.14 : x
  2. Step 2: Convert to fraction form
    724,598.98/999,977.85 = 402,309.14/x
  3. Step 3: Cross multiply
    724,598.98x = 999,977.85 × 402,309.14
  4. Step 4: Simplify right side
    724,598.98x = 402,300,228,852.55
  5. Step 5: Solve for x
    x = 402,300,228,852.55/724,598.98
  6. Step 6: Final answer
    x = 555,203.97

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1.5x scale

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.