Home / 1,539,603.81-2,308,617.18-820,355.40

Finding the Fourth Proportional to 1,539,603.81, 2,308,617.18 and 820,355.40

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Solution

The fourth proportional to 1,539,603.81, 2,308,617.18 and 820,355.40 is: 1,230,112.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,603.81 : 2,308,617.18 = 820,355.40 : x
  2. Step 2: Convert to fraction form
    1,539,603.81/2,308,617.18 = 820,355.40/x
  3. Step 3: Cross multiply
    1,539,603.81x = 2,308,617.18 × 820,355.40
  4. Step 4: Simplify right side
    1,539,603.81x = 1,893,886,570,145.77
  5. Step 5: Solve for x
    x = 1,893,886,570,145.77/1,539,603.81
  6. Step 6: Final answer
    x = 1,230,112.94

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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.