Home / 524,340.64-723,569.25-309,549.90

Finding the Fourth Proportional to 524,340.64, 723,569.25 and 309,549.90

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Solution

The fourth proportional to 524,340.64, 723,569.25 and 309,549.90 is: 427,166.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,340.64 : 723,569.25 = 309,549.90 : x
  2. Step 2: Convert to fraction form
    524,340.64/723,569.25 = 309,549.90/x
  3. Step 3: Cross multiply
    524,340.64x = 723,569.25 × 309,549.90
  4. Step 4: Simplify right side
    524,340.64x = 223,980,792,854.77
  5. Step 5: Solve for x
    x = 223,980,792,854.77/524,340.64
  6. Step 6: Final answer
    x = 427,166.57

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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.