Home / 833,606.40-1,248,566.40-645,139.20

Finding the Fourth Proportional to 833,606.40, 1,248,566.40 and 645,139.20

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Solution

The fourth proportional to 833,606.40, 1,248,566.40 and 645,139.20 is: 966,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,606.40 : 1,248,566.40 = 645,139.20 : x
  2. Step 2: Convert to fraction form
    833,606.40/1,248,566.40 = 645,139.20/x
  3. Step 3: Cross multiply
    833,606.40x = 1,248,566.40 × 645,139.20
  4. Step 4: Simplify right side
    833,606.40x = 805,499,128,442.88
  5. Step 5: Solve for x
    x = 805,499,128,442.88/833,606.40
  6. Step 6: Final answer
    x = 966,282.32

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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.