Home / 926,970.40-1,388,820.24-811,833.44

Finding the Fourth Proportional to 926,970.40, 1,388,820.24 and 811,833.44

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Solution

The fourth proportional to 926,970.40, 1,388,820.24 and 811,833.44 is: 1,216,317.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,970.40 : 1,388,820.24 = 811,833.44 : x
  2. Step 2: Convert to fraction form
    926,970.40/1,388,820.24 = 811,833.44/x
  3. Step 3: Cross multiply
    926,970.40x = 1,388,820.24 × 811,833.44
  4. Step 4: Simplify right side
    926,970.40x = 1,127,490,712,980.83
  5. Step 5: Solve for x
    x = 1,127,490,712,980.83/926,970.40
  6. Step 6: Final answer
    x = 1,216,317.92

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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.