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Finding the Fourth Proportional to 423,413.67, 634,290.11 and 245,547.01

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Solution

The fourth proportional to 423,413.67, 634,290.11 and 245,547.01 is: 367,838.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,413.67 : 634,290.11 = 245,547.01 : x
  2. Step 2: Convert to fraction form
    423,413.67/634,290.11 = 245,547.01/x
  3. Step 3: Cross multiply
    423,413.67x = 634,290.11 × 245,547.01
  4. Step 4: Simplify right side
    423,413.67x = 155,748,039,983.07
  5. Step 5: Solve for x
    x = 155,748,039,983.07/423,413.67
  6. Step 6: Final answer
    x = 367,838.95

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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.