Home / 779,256.10-1,168,840.41-210,628.81

Finding the Fourth Proportional to 779,256.10, 1,168,840.41 and 210,628.81

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Solution

The fourth proportional to 779,256.10, 1,168,840.41 and 210,628.81 is: 315,931.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,256.10 : 1,168,840.41 = 210,628.81 : x
  2. Step 2: Convert to fraction form
    779,256.10/1,168,840.41 = 210,628.81/x
  3. Step 3: Cross multiply
    779,256.10x = 1,168,840.41 × 210,628.81
  4. Step 4: Simplify right side
    779,256.10x = 246,191,464,638.21
  5. Step 5: Solve for x
    x = 246,191,464,638.21/779,256.10
  6. Step 6: Final answer
    x = 315,931.39

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Double scale
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Similar ratio
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1.5x scale

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.