Home / 722,650.23-997,176.51-400,280.31

Finding the Fourth Proportional to 722,650.23, 997,176.51 and 400,280.31

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Solution

The fourth proportional to 722,650.23, 997,176.51 and 400,280.31 is: 552,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,650.23 : 997,176.51 = 400,280.31 : x
  2. Step 2: Convert to fraction form
    722,650.23/997,176.51 = 400,280.31/x
  3. Step 3: Cross multiply
    722,650.23x = 997,176.51 × 400,280.31
  4. Step 4: Simplify right side
    722,650.23x = 399,150,122,547.52
  5. Step 5: Solve for x
    x = 399,150,122,547.52/722,650.23
  6. Step 6: Final answer
    x = 552,342.07

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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.