Home / 717,487.74-1,075,493.16-318,316.50

Finding the Fourth Proportional to 717,487.74, 1,075,493.16 and 318,316.50

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Solution

The fourth proportional to 717,487.74, 1,075,493.16 and 318,316.50 is: 477,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,487.74 : 1,075,493.16 = 318,316.50 : x
  2. Step 2: Convert to fraction form
    717,487.74/1,075,493.16 = 318,316.50/x
  3. Step 3: Cross multiply
    717,487.74x = 1,075,493.16 × 318,316.50
  4. Step 4: Simplify right side
    717,487.74x = 342,347,218,465.14
  5. Step 5: Solve for x
    x = 342,347,218,465.14/717,487.74
  6. Step 6: Final answer
    x = 477,147.13

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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.