Home / 989,205.60-1,483,808.40-646,721.40

Finding the Fourth Proportional to 989,205.60, 1,483,808.40 and 646,721.40

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Solution

The fourth proportional to 989,205.60, 1,483,808.40 and 646,721.40 is: 970,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,205.60 : 1,483,808.40 = 646,721.40 : x
  2. Step 2: Convert to fraction form
    989,205.60/1,483,808.40 = 646,721.40/x
  3. Step 3: Cross multiply
    989,205.60x = 1,483,808.40 × 646,721.40
  4. Step 4: Simplify right side
    989,205.60x = 959,610,645,779.76
  5. Step 5: Solve for x
    x = 959,610,645,779.76/989,205.60
  6. Step 6: Final answer
    x = 970,082.10

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Similar ratio
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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.