Home / 770,145.30-1,154,233.80-369,924.30

Finding the Fourth Proportional to 770,145.30, 1,154,233.80 and 369,924.30

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Solution

The fourth proportional to 770,145.30, 1,154,233.80 and 369,924.30 is: 554,413.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,145.30 : 1,154,233.80 = 369,924.30 : x
  2. Step 2: Convert to fraction form
    770,145.30/1,154,233.80 = 369,924.30/x
  3. Step 3: Cross multiply
    770,145.30x = 1,154,233.80 × 369,924.30
  4. Step 4: Simplify right side
    770,145.30x = 426,979,130,501.34
  5. Step 5: Solve for x
    x = 426,979,130,501.34/770,145.30
  6. Step 6: Final answer
    x = 554,413.73

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Double scale
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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.