Home / 771,362.16-1,157,009.40-210,394.80

Finding the Fourth Proportional to 771,362.16, 1,157,009.40 and 210,394.80

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Solution

The fourth proportional to 771,362.16, 1,157,009.40 and 210,394.80 is: 315,582.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,362.16 : 1,157,009.40 = 210,394.80 : x
  2. Step 2: Convert to fraction form
    771,362.16/1,157,009.40 = 210,394.80/x
  3. Step 3: Cross multiply
    771,362.16x = 1,157,009.40 × 210,394.80
  4. Step 4: Simplify right side
    771,362.16x = 243,428,761,311.12
  5. Step 5: Solve for x
    x = 243,428,761,311.12/771,362.16
  6. Step 6: Final answer
    x = 315,582.97

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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.