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Finding the Fourth Proportional to 528,025.92, 728,409.76 and 377,210.40

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Solution

The fourth proportional to 528,025.92, 728,409.76 and 377,210.40 is: 520,360.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,025.92 : 728,409.76 = 377,210.40 : x
  2. Step 2: Convert to fraction form
    528,025.92/728,409.76 = 377,210.40/x
  3. Step 3: Cross multiply
    528,025.92x = 728,409.76 × 377,210.40
  4. Step 4: Simplify right side
    528,025.92x = 274,763,736,933.50
  5. Step 5: Solve for x
    x = 274,763,736,933.50/528,025.92
  6. Step 6: Final answer
    x = 520,360.32

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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.