Home / 989,810.60-1,487,826.30-971,148.20

Finding the Fourth Proportional to 989,810.60, 1,487,826.30 and 971,148.20

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Solution

The fourth proportional to 989,810.60, 1,487,826.30 and 971,148.20 is: 1,459,774.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,810.60 : 1,487,826.30 = 971,148.20 : x
  2. Step 2: Convert to fraction form
    989,810.60/1,487,826.30 = 971,148.20/x
  3. Step 3: Cross multiply
    989,810.60x = 1,487,826.30 × 971,148.20
  4. Step 4: Simplify right side
    989,810.60x = 1,444,899,833,157.66
  5. Step 5: Solve for x
    x = 1,444,899,833,157.66/989,810.60
  6. Step 6: Final answer
    x = 1,459,774.05

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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.