Home / 761,268.28-1,050,075.06-489,690.22

Finding the Fourth Proportional to 761,268.28, 1,050,075.06 and 489,690.22

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Solution

The fourth proportional to 761,268.28, 1,050,075.06 and 489,690.22 is: 675,466.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,268.28 : 1,050,075.06 = 489,690.22 : x
  2. Step 2: Convert to fraction form
    761,268.28/1,050,075.06 = 489,690.22/x
  3. Step 3: Cross multiply
    761,268.28x = 1,050,075.06 × 489,690.22
  4. Step 4: Simplify right side
    761,268.28x = 514,211,487,147.91
  5. Step 5: Solve for x
    x = 514,211,487,147.91/761,268.28
  6. Step 6: Final answer
    x = 675,466.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.