Home / 742,413.17-1,024,529.64-420,117.41

Finding the Fourth Proportional to 742,413.17, 1,024,529.64 and 420,117.41

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Solution

The fourth proportional to 742,413.17, 1,024,529.64 and 420,117.41 is: 579,761.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,413.17 : 1,024,529.64 = 420,117.41 : x
  2. Step 2: Convert to fraction form
    742,413.17/1,024,529.64 = 420,117.41/x
  3. Step 3: Cross multiply
    742,413.17x = 1,024,529.64 × 420,117.41
  4. Step 4: Simplify right side
    742,413.17x = 430,422,738,825.03
  5. Step 5: Solve for x
    x = 430,422,738,825.03/742,413.17
  6. Step 6: Final answer
    x = 579,761.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.