Home / 779,662.35-1,169,903.40-553,418.01

Finding the Fourth Proportional to 779,662.35, 1,169,903.40 and 553,418.01

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Solution

The fourth proportional to 779,662.35, 1,169,903.40 and 553,418.01 is: 830,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,662.35 : 1,169,903.40 = 553,418.01 : x
  2. Step 2: Convert to fraction form
    779,662.35/1,169,903.40 = 553,418.01/x
  3. Step 3: Cross multiply
    779,662.35x = 1,169,903.40 × 553,418.01
  4. Step 4: Simplify right side
    779,662.35x = 647,445,611,520.23
  5. Step 5: Solve for x
    x = 647,445,611,520.23/779,662.35
  6. Step 6: Final answer
    x = 830,417.95

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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.