Home / 878,457.60-1,317,686.40-546,681.60

Finding the Fourth Proportional to 878,457.60, 1,317,686.40 and 546,681.60

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Solution

The fourth proportional to 878,457.60, 1,317,686.40 and 546,681.60 is: 820,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,457.60 : 1,317,686.40 = 546,681.60 : x
  2. Step 2: Convert to fraction form
    878,457.60/1,317,686.40 = 546,681.60/x
  3. Step 3: Cross multiply
    878,457.60x = 1,317,686.40 × 546,681.60
  4. Step 4: Simplify right side
    878,457.60x = 720,354,909,450.24
  5. Step 5: Solve for x
    x = 720,354,909,450.24/878,457.60
  6. Step 6: Final answer
    x = 820,022.40

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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.