Home / 920,477.54-1,380,795.15-280,925.30

Finding the Fourth Proportional to 920,477.54, 1,380,795.15 and 280,925.30

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Solution

The fourth proportional to 920,477.54, 1,380,795.15 and 280,925.30 is: 421,412.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,477.54 : 1,380,795.15 = 280,925.30 : x
  2. Step 2: Convert to fraction form
    920,477.54/1,380,795.15 = 280,925.30/x
  3. Step 3: Cross multiply
    920,477.54x = 1,380,795.15 × 280,925.30
  4. Step 4: Simplify right side
    920,477.54x = 387,900,291,752.30
  5. Step 5: Solve for x
    x = 387,900,291,752.30/920,477.54
  6. Step 6: Final answer
    x = 421,412.01

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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.