Home / 722,775.15-997,428.74-400,506.12

Finding the Fourth Proportional to 722,775.15, 997,428.74 and 400,506.12

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Solution

The fourth proportional to 722,775.15, 997,428.74 and 400,506.12 is: 552,697.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,775.15 : 997,428.74 = 400,506.12 : x
  2. Step 2: Convert to fraction form
    722,775.15/997,428.74 = 400,506.12/x
  3. Step 3: Cross multiply
    722,775.15x = 997,428.74 × 400,506.12
  4. Step 4: Simplify right side
    722,775.15x = 399,476,312,631.36
  5. Step 5: Solve for x
    x = 399,476,312,631.36/722,775.15
  6. Step 6: Final answer
    x = 552,697.91

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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.