Home / 906,831.42-1,251,436.95-498,938.64

Finding the Fourth Proportional to 906,831.42, 1,251,436.95 and 498,938.64

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Solution

The fourth proportional to 906,831.42, 1,251,436.95 and 498,938.64 is: 688,540.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,831.42 : 1,251,436.95 = 498,938.64 : x
  2. Step 2: Convert to fraction form
    906,831.42/1,251,436.95 = 498,938.64/x
  3. Step 3: Cross multiply
    906,831.42x = 1,251,436.95 × 498,938.64
  4. Step 4: Simplify right side
    906,831.42x = 624,390,249,878.75
  5. Step 5: Solve for x
    x = 624,390,249,878.75/906,831.42
  6. Step 6: Final answer
    x = 688,540.60

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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.