Home / 1,060,050.75-1,590,601.55-420,340.77

Finding the Fourth Proportional to 1,060,050.75, 1,590,601.55 and 420,340.77

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Solution

The fourth proportional to 1,060,050.75, 1,590,601.55 and 420,340.77 is: 630,719.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060,050.75 : 1,590,601.55 = 420,340.77 : x
  2. Step 2: Convert to fraction form
    1,060,050.75/1,590,601.55 = 420,340.77/x
  3. Step 3: Cross multiply
    1,060,050.75x = 1,590,601.55 × 420,340.77
  4. Step 4: Simplify right side
    1,060,050.75x = 668,594,678,188.49
  5. Step 5: Solve for x
    x = 668,594,678,188.49/1,060,050.75
  6. Step 6: Final answer
    x = 630,719.50

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Double scale
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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.