Home / 990,210.60-1,485,315.90-887,567.40

Finding the Fourth Proportional to 990,210.60, 1,485,315.90 and 887,567.40

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Solution

The fourth proportional to 990,210.60, 1,485,315.90 and 887,567.40 is: 1,331,351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,210.60 : 1,485,315.90 = 887,567.40 : x
  2. Step 2: Convert to fraction form
    990,210.60/1,485,315.90 = 887,567.40/x
  3. Step 3: Cross multiply
    990,210.60x = 1,485,315.90 × 887,567.40
  4. Step 4: Simplify right side
    990,210.60x = 1,318,317,971,541.66
  5. Step 5: Solve for x
    x = 1,318,317,971,541.66/990,210.60
  6. Step 6: Final answer
    x = 1,331,351.10

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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.