Home / 514,660.93-771,985.80-210,987.36

Finding the Fourth Proportional to 514,660.93, 771,985.80 and 210,987.36

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Solution

The fourth proportional to 514,660.93, 771,985.80 and 210,987.36 is: 316,478.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,660.93 : 771,985.80 = 210,987.36 : x
  2. Step 2: Convert to fraction form
    514,660.93/771,985.80 = 210,987.36/x
  3. Step 3: Cross multiply
    514,660.93x = 771,985.80 × 210,987.36
  4. Step 4: Simplify right side
    514,660.93x = 162,879,245,899.49
  5. Step 5: Solve for x
    x = 162,879,245,899.49/514,660.93
  6. Step 6: Final answer
    x = 316,478.75

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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.