Home / 760,831.14-1,049,946.90-421,299.38

Finding the Fourth Proportional to 760,831.14, 1,049,946.90 and 421,299.38

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Solution

The fourth proportional to 760,831.14, 1,049,946.90 and 421,299.38 is: 581,393.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,831.14 : 1,049,946.90 = 421,299.38 : x
  2. Step 2: Convert to fraction form
    760,831.14/1,049,946.90 = 421,299.38/x
  3. Step 3: Cross multiply
    760,831.14x = 1,049,946.90 × 421,299.38
  4. Step 4: Simplify right side
    760,831.14x = 442,341,978,002.92
  5. Step 5: Solve for x
    x = 442,341,978,002.92/760,831.14
  6. Step 6: Final answer
    x = 581,393.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.