Home / 961,220.32-1,440,938.40-456,018.64

Finding the Fourth Proportional to 961,220.32, 1,440,938.40 and 456,018.64

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Solution

The fourth proportional to 961,220.32, 1,440,938.40 and 456,018.64 is: 683,604.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,220.32 : 1,440,938.40 = 456,018.64 : x
  2. Step 2: Convert to fraction form
    961,220.32/1,440,938.40 = 456,018.64/x
  3. Step 3: Cross multiply
    961,220.32x = 1,440,938.40 × 456,018.64
  4. Step 4: Simplify right side
    961,220.32x = 657,094,769,491.78
  5. Step 5: Solve for x
    x = 657,094,769,491.78/961,220.32
  6. Step 6: Final answer
    x = 683,604.74

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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.