Home / 717,835.95-1,075,737.96-398,128.53

Finding the Fourth Proportional to 717,835.95, 1,075,737.96 and 398,128.53

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Solution

The fourth proportional to 717,835.95, 1,075,737.96 and 398,128.53 is: 596,629.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,835.95 : 1,075,737.96 = 398,128.53 : x
  2. Step 2: Convert to fraction form
    717,835.95/1,075,737.96 = 398,128.53/x
  3. Step 3: Cross multiply
    717,835.95x = 1,075,737.96 × 398,128.53
  4. Step 4: Simplify right side
    717,835.95x = 428,281,972,680.00
  5. Step 5: Solve for x
    x = 428,281,972,680.00/717,835.95
  6. Step 6: Final answer
    x = 596,629.32

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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.