Home / 910,413.10-1,365,619.65-311,320.90

Finding the Fourth Proportional to 910,413.10, 1,365,619.65 and 311,320.90

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Solution

The fourth proportional to 910,413.10, 1,365,619.65 and 311,320.90 is: 466,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,413.10 : 1,365,619.65 = 311,320.90 : x
  2. Step 2: Convert to fraction form
    910,413.10/1,365,619.65 = 311,320.90/x
  3. Step 3: Cross multiply
    910,413.10x = 1,365,619.65 × 311,320.90
  4. Step 4: Simplify right side
    910,413.10x = 425,145,938,495.69
  5. Step 5: Solve for x
    x = 425,145,938,495.69/910,413.10
  6. Step 6: Final answer
    x = 466,981.35

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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.