Home / 388,935.60-583,403.40-323,325.60

Finding the Fourth Proportional to 388,935.60, 583,403.40 and 323,325.60

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Solution

The fourth proportional to 388,935.60, 583,403.40 and 323,325.60 is: 484,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,935.60 : 583,403.40 = 323,325.60 : x
  2. Step 2: Convert to fraction form
    388,935.60/583,403.40 = 323,325.60/x
  3. Step 3: Cross multiply
    388,935.60x = 583,403.40 × 323,325.60
  4. Step 4: Simplify right side
    388,935.60x = 188,629,254,347.04
  5. Step 5: Solve for x
    x = 188,629,254,347.04/388,935.60
  6. Step 6: Final answer
    x = 484,988.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.