Home / 771,210.52-1,156,803.40-210,245.02

Finding the Fourth Proportional to 771,210.52, 1,156,803.40 and 210,245.02

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Solution

The fourth proportional to 771,210.52, 1,156,803.40 and 210,245.02 is: 315,364.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,210.52 : 1,156,803.40 = 210,245.02 : x
  2. Step 2: Convert to fraction form
    771,210.52/1,156,803.40 = 210,245.02/x
  3. Step 3: Cross multiply
    771,210.52x = 1,156,803.40 × 210,245.02
  4. Step 4: Simplify right side
    771,210.52x = 243,212,153,969.07
  5. Step 5: Solve for x
    x = 243,212,153,969.07/771,210.52
  6. Step 6: Final answer
    x = 315,364.16

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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.