Home / 533,723.16-736,417.48-318,821.28

Finding the Fourth Proportional to 533,723.16, 736,417.48 and 318,821.28

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Solution

The fourth proportional to 533,723.16, 736,417.48 and 318,821.28 is: 439,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,723.16 : 736,417.48 = 318,821.28 : x
  2. Step 2: Convert to fraction form
    533,723.16/736,417.48 = 318,821.28/x
  3. Step 3: Cross multiply
    533,723.16x = 736,417.48 × 318,821.28
  4. Step 4: Simplify right side
    533,723.16x = 234,785,563,587.97
  5. Step 5: Solve for x
    x = 234,785,563,587.97/533,723.16
  6. Step 6: Final answer
    x = 439,901.40

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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.