Home / 989,808.60-1,487,823.30-971,146.20

Finding the Fourth Proportional to 989,808.60, 1,487,823.30 and 971,146.20

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Solution

The fourth proportional to 989,808.60, 1,487,823.30 and 971,146.20 is: 1,459,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,808.60 : 1,487,823.30 = 971,146.20 : x
  2. Step 2: Convert to fraction form
    989,808.60/1,487,823.30 = 971,146.20/x
  3. Step 3: Cross multiply
    989,808.60x = 1,487,823.30 × 971,146.20
  4. Step 4: Simplify right side
    989,808.60x = 1,444,893,944,066.46
  5. Step 5: Solve for x
    x = 1,444,893,944,066.46/989,808.60
  6. Step 6: Final answer
    x = 1,459,771.05

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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.