Home / 1,007,360.20-1,509,728.10-407,830.60

Finding the Fourth Proportional to 1,007,360.20, 1,509,728.10 and 407,830.60

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Solution

The fourth proportional to 1,007,360.20, 1,509,728.10 and 407,830.60 is: 611,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,360.20 : 1,509,728.10 = 407,830.60 : x
  2. Step 2: Convert to fraction form
    1,007,360.20/1,509,728.10 = 407,830.60/x
  3. Step 3: Cross multiply
    1,007,360.20x = 1,509,728.10 × 407,830.60
  4. Step 4: Simplify right side
    1,007,360.20x = 615,713,316,859.86
  5. Step 5: Solve for x
    x = 615,713,316,859.86/1,007,360.20
  6. Step 6: Final answer
    x = 611,214.65

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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.