Home / 723,131.70-997,816.95-400,841.70

Finding the Fourth Proportional to 723,131.70, 997,816.95 and 400,841.70

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Solution

The fourth proportional to 723,131.70, 997,816.95 and 400,841.70 is: 553,103.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,131.70 : 997,816.95 = 400,841.70 : x
  2. Step 2: Convert to fraction form
    723,131.70/997,816.95 = 400,841.70/x
  3. Step 3: Cross multiply
    723,131.70x = 997,816.95 × 400,841.70
  4. Step 4: Simplify right side
    723,131.70x = 399,966,642,526.82
  5. Step 5: Solve for x
    x = 399,966,642,526.82/723,131.70
  6. Step 6: Final answer
    x = 553,103.46

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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.