Home / 771,804.40-1,157,706.60-210,838.90

Finding the Fourth Proportional to 771,804.40, 1,157,706.60 and 210,838.90

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Solution

The fourth proportional to 771,804.40, 1,157,706.60 and 210,838.90 is: 316,258.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,804.40 : 1,157,706.60 = 210,838.90 : x
  2. Step 2: Convert to fraction form
    771,804.40/1,157,706.60 = 210,838.90/x
  3. Step 3: Cross multiply
    771,804.40x = 1,157,706.60 × 210,838.90
  4. Step 4: Simplify right side
    771,804.40x = 244,089,586,066.74
  5. Step 5: Solve for x
    x = 244,089,586,066.74/771,804.40
  6. Step 6: Final answer
    x = 316,258.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.