Home / 911,916.32-1,258,509.65-504,009.40

Finding the Fourth Proportional to 911,916.32, 1,258,509.65 and 504,009.40

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Solution

The fourth proportional to 911,916.32, 1,258,509.65 and 504,009.40 is: 695,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,916.32 : 1,258,509.65 = 504,009.40 : x
  2. Step 2: Convert to fraction form
    911,916.32/1,258,509.65 = 504,009.40/x
  3. Step 3: Cross multiply
    911,916.32x = 1,258,509.65 × 504,009.40
  4. Step 4: Simplify right side
    911,916.32x = 634,300,693,590.71
  5. Step 5: Solve for x
    x = 634,300,693,590.71/911,916.32
  6. Step 6: Final answer
    x = 695,568.97

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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.