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Finding the Fourth Proportional to 423,413.07, 583,504.59 and 415,631.76

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Solution

The fourth proportional to 423,413.07, 583,504.59 and 415,631.76 is: 572,781.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,413.07 : 583,504.59 = 415,631.76 : x
  2. Step 2: Convert to fraction form
    423,413.07/583,504.59 = 415,631.76/x
  3. Step 3: Cross multiply
    423,413.07x = 583,504.59 × 415,631.76
  4. Step 4: Simplify right side
    423,413.07x = 242,523,035,573.36
  5. Step 5: Solve for x
    x = 242,523,035,573.36/423,413.07
  6. Step 6: Final answer
    x = 572,781.17

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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.