Home / 1,018,813.14-1,528,539.75-420,056.10

Finding the Fourth Proportional to 1,018,813.14, 1,528,539.75 and 420,056.10

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Solution

The fourth proportional to 1,018,813.14, 1,528,539.75 and 420,056.10 is: 630,216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,813.14 : 1,528,539.75 = 420,056.10 : x
  2. Step 2: Convert to fraction form
    1,018,813.14/1,528,539.75 = 420,056.10/x
  3. Step 3: Cross multiply
    1,018,813.14x = 1,528,539.75 × 420,056.10
  4. Step 4: Simplify right side
    1,018,813.14x = 642,072,446,079.98
  5. Step 5: Solve for x
    x = 642,072,446,079.98/1,018,813.14
  6. Step 6: Final answer
    x = 630,216.10

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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.