Home / 989,880.40-1,484,820.60-635,586.40

Finding the Fourth Proportional to 989,880.40, 1,484,820.60 and 635,586.40

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Solution

The fourth proportional to 989,880.40, 1,484,820.60 and 635,586.40 is: 953,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,880.40 : 1,484,820.60 = 635,586.40 : x
  2. Step 2: Convert to fraction form
    989,880.40/1,484,820.60 = 635,586.40/x
  3. Step 3: Cross multiply
    989,880.40x = 1,484,820.60 × 635,586.40
  4. Step 4: Simplify right side
    989,880.40x = 943,731,779,799.84
  5. Step 5: Solve for x
    x = 943,731,779,799.84/989,880.40
  6. Step 6: Final answer
    x = 953,379.60

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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.