Home / 713,020.72-1,070,121.88-358,136.32

Finding the Fourth Proportional to 713,020.72, 1,070,121.88 and 358,136.32

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Solution

The fourth proportional to 713,020.72, 1,070,121.88 and 358,136.32 is: 537,501.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,020.72 : 1,070,121.88 = 358,136.32 : x
  2. Step 2: Convert to fraction form
    713,020.72/1,070,121.88 = 358,136.32/x
  3. Step 3: Cross multiply
    713,020.72x = 1,070,121.88 × 358,136.32
  4. Step 4: Simplify right side
    713,020.72x = 383,249,512,054.68
  5. Step 5: Solve for x
    x = 383,249,512,054.68/713,020.72
  6. Step 6: Final answer
    x = 537,501.23

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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.