Home / 708,100.24-976,731.80-421,406.32

Finding the Fourth Proportional to 708,100.24, 976,731.80 and 421,406.32

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Solution

The fourth proportional to 708,100.24, 976,731.80 and 421,406.32 is: 581,274.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,100.24 : 976,731.80 = 421,406.32 : x
  2. Step 2: Convert to fraction form
    708,100.24/976,731.80 = 421,406.32/x
  3. Step 3: Cross multiply
    708,100.24x = 976,731.80 × 421,406.32
  4. Step 4: Simplify right side
    708,100.24x = 411,600,953,464.98
  5. Step 5: Solve for x
    x = 411,600,953,464.98/708,100.24
  6. Step 6: Final answer
    x = 581,274.98

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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.