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Finding the Fourth Proportional to 670,581.72, 925,384.32 and 368,775.72

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Solution

The fourth proportional to 670,581.72, 925,384.32 and 368,775.72 is: 508,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,581.72 : 925,384.32 = 368,775.72 : x
  2. Step 2: Convert to fraction form
    670,581.72/925,384.32 = 368,775.72/x
  3. Step 3: Cross multiply
    670,581.72x = 925,384.32 × 368,775.72
  4. Step 4: Simplify right side
    670,581.72x = 341,259,268,884.71
  5. Step 5: Solve for x
    x = 341,259,268,884.71/670,581.72
  6. Step 6: Final answer
    x = 508,900.35

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Double scale
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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.