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Finding the Fourth Proportional to 628,961.68, 867,966.48 and 342,483.76

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Solution

The fourth proportional to 628,961.68, 867,966.48 and 342,483.76 is: 472,627.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,961.68 : 867,966.48 = 342,483.76 : x
  2. Step 2: Convert to fraction form
    628,961.68/867,966.48 = 342,483.76/x
  3. Step 3: Cross multiply
    628,961.68x = 867,966.48 × 342,483.76
  4. Step 4: Simplify right side
    628,961.68x = 297,264,423,624.37
  5. Step 5: Solve for x
    x = 297,264,423,624.37/628,961.68
  6. Step 6: Final answer
    x = 472,627.24

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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.