Home / 1,019,483.62-1,529,409.30-420,111.16

Finding the Fourth Proportional to 1,019,483.62, 1,529,409.30 and 420,111.16

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Solution

The fourth proportional to 1,019,483.62, 1,529,409.30 and 420,111.16 is: 630,242.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,483.62 : 1,529,409.30 = 420,111.16 : x
  2. Step 2: Convert to fraction form
    1,019,483.62/1,529,409.30 = 420,111.16/x
  3. Step 3: Cross multiply
    1,019,483.62x = 1,529,409.30 × 420,111.16
  4. Step 4: Simplify right side
    1,019,483.62x = 642,521,905,390.19
  5. Step 5: Solve for x
    x = 642,521,905,390.19/1,019,483.62
  6. Step 6: Final answer
    x = 630,242.50

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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.