Home / 911,920.64-1,258,411.24-504,001.40

Finding the Fourth Proportional to 911,920.64, 1,258,411.24 and 504,001.40

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Solution

The fourth proportional to 911,920.64, 1,258,411.24 and 504,001.40 is: 695,500.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,920.64 : 1,258,411.24 = 504,001.40 : x
  2. Step 2: Convert to fraction form
    911,920.64/1,258,411.24 = 504,001.40/x
  3. Step 3: Cross multiply
    911,920.64x = 1,258,411.24 × 504,001.40
  4. Step 4: Simplify right side
    911,920.64x = 634,241,026,735.74
  5. Step 5: Solve for x
    x = 634,241,026,735.74/911,920.64
  6. Step 6: Final answer
    x = 695,500.24

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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.