Home / 3,478,416.92-4,800,490.64-1,929,831.40

Finding the Fourth Proportional to 3,478,416.92, 4,800,490.64 and 1,929,831.40

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Solution

The fourth proportional to 3,478,416.92, 4,800,490.64 and 1,929,831.40 is: 2,663,320.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478,416.92 : 4,800,490.64 = 1,929,831.40 : x
  2. Step 2: Convert to fraction form
    3,478,416.92/4,800,490.64 = 1,929,831.40/x
  3. Step 3: Cross multiply
    3,478,416.92x = 4,800,490.64 × 1,929,831.40
  4. Step 4: Simplify right side
    3,478,416.92x = 9,264,137,572,478.10
  5. Step 5: Solve for x
    x = 9,264,137,572,478.10/3,478,416.92
  6. Step 6: Final answer
    x = 2,663,320.06

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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.