Home / 722,973.21-997,703.01-400,731.72

Finding the Fourth Proportional to 722,973.21, 997,703.01 and 400,731.72

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Solution

The fourth proportional to 722,973.21, 997,703.01 and 400,731.72 is: 553,009.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,973.21 : 997,703.01 = 400,731.72 : x
  2. Step 2: Convert to fraction form
    722,973.21/997,703.01 = 400,731.72/x
  3. Step 3: Cross multiply
    722,973.21x = 997,703.01 × 400,731.72
  4. Step 4: Simplify right side
    722,973.21x = 399,811,243,246.48
  5. Step 5: Solve for x
    x = 399,811,243,246.48/722,973.21
  6. Step 6: Final answer
    x = 553,009.76

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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.