Home / 779,831.80-1,170,054.90-306,436.60

Finding the Fourth Proportional to 779,831.80, 1,170,054.90 and 306,436.60

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Solution

The fourth proportional to 779,831.80, 1,170,054.90 and 306,436.60 is: 459,775.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,831.80 : 1,170,054.90 = 306,436.60 : x
  2. Step 2: Convert to fraction form
    779,831.80/1,170,054.90 = 306,436.60/x
  3. Step 3: Cross multiply
    779,831.80x = 1,170,054.90 × 306,436.60
  4. Step 4: Simplify right side
    779,831.80x = 358,547,645,369.34
  5. Step 5: Solve for x
    x = 358,547,645,369.34/779,831.80
  6. Step 6: Final answer
    x = 459,775.61

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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.