Home / 878,280.67-1,316,404.45-403,970.59

Finding the Fourth Proportional to 878,280.67, 1,316,404.45 and 403,970.59

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Solution

The fourth proportional to 878,280.67, 1,316,404.45 and 403,970.59 is: 605,488.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,280.67 : 1,316,404.45 = 403,970.59 : x
  2. Step 2: Convert to fraction form
    878,280.67/1,316,404.45 = 403,970.59/x
  3. Step 3: Cross multiply
    878,280.67x = 1,316,404.45 × 403,970.59
  4. Step 4: Simplify right side
    878,280.67x = 531,788,679,054.11
  5. Step 5: Solve for x
    x = 531,788,679,054.11/878,280.67
  6. Step 6: Final answer
    x = 605,488.31

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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.