Home / 779,664.85-1,169,907.15-553,420.51

Finding the Fourth Proportional to 779,664.85, 1,169,907.15 and 553,420.51

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Solution

The fourth proportional to 779,664.85, 1,169,907.15 and 553,420.51 is: 830,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,664.85 : 1,169,907.15 = 553,420.51 : x
  2. Step 2: Convert to fraction form
    779,664.85/1,169,907.15 = 553,420.51/x
  3. Step 3: Cross multiply
    779,664.85x = 1,169,907.15 × 553,420.51
  4. Step 4: Simplify right side
    779,664.85x = 647,450,611,605.65
  5. Step 5: Solve for x
    x = 647,450,611,605.65/779,664.85
  6. Step 6: Final answer
    x = 830,421.70

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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.