Home / 770,748.80-1,155,345.60-350,326.40

Finding the Fourth Proportional to 770,748.80, 1,155,345.60 and 350,326.40

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Solution

The fourth proportional to 770,748.80, 1,155,345.60 and 350,326.40 is: 525,136.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,748.80 : 1,155,345.60 = 350,326.40 : x
  2. Step 2: Convert to fraction form
    770,748.80/1,155,345.60 = 350,326.40/x
  3. Step 3: Cross multiply
    770,748.80x = 1,155,345.60 × 350,326.40
  4. Step 4: Simplify right side
    770,748.80x = 404,748,064,803.84
  5. Step 5: Solve for x
    x = 404,748,064,803.84/770,748.80
  6. Step 6: Final answer
    x = 525,136.16

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1.5x scale

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.