Home / 734,662.96-1,013,904.32-428,714.64

Finding the Fourth Proportional to 734,662.96, 1,013,904.32 and 428,714.64

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Solution

The fourth proportional to 734,662.96, 1,013,904.32 and 428,714.64 is: 591,666.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,662.96 : 1,013,904.32 = 428,714.64 : x
  2. Step 2: Convert to fraction form
    734,662.96/1,013,904.32 = 428,714.64/x
  3. Step 3: Cross multiply
    734,662.96x = 1,013,904.32 × 428,714.64
  4. Step 4: Simplify right side
    734,662.96x = 434,675,625,543.25
  5. Step 5: Solve for x
    x = 434,675,625,543.25/734,662.96
  6. Step 6: Final answer
    x = 591,666.72

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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.