Home / 656,402.08-906,137.28-384,432.16

Finding the Fourth Proportional to 656,402.08, 906,137.28 and 384,432.16

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Solution

The fourth proportional to 656,402.08, 906,137.28 and 384,432.16 is: 530,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,402.08 : 906,137.28 = 384,432.16 : x
  2. Step 2: Convert to fraction form
    656,402.08/906,137.28 = 384,432.16/x
  3. Step 3: Cross multiply
    656,402.08x = 906,137.28 × 384,432.16
  4. Step 4: Simplify right side
    656,402.08x = 348,348,311,806.93
  5. Step 5: Solve for x
    x = 348,348,311,806.93/656,402.08
  6. Step 6: Final answer
    x = 530,693.49

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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.