Home / 712,513.24-983,268.24-390,224.08

Finding the Fourth Proportional to 712,513.24, 983,268.24 and 390,224.08

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Solution

The fourth proportional to 712,513.24, 983,268.24 and 390,224.08 is: 538,509.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,513.24 : 983,268.24 = 390,224.08 : x
  2. Step 2: Convert to fraction form
    712,513.24/983,268.24 = 390,224.08/x
  3. Step 3: Cross multiply
    712,513.24x = 983,268.24 × 390,224.08
  4. Step 4: Simplify right side
    712,513.24x = 383,694,944,347.22
  5. Step 5: Solve for x
    x = 383,694,944,347.22/712,513.24
  6. Step 6: Final answer
    x = 538,509.21

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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.