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Finding the Fourth Proportional to 700,703.48, 966,970.76 and 378,413.54

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Solution

The fourth proportional to 700,703.48, 966,970.76 and 378,413.54 is: 522,210.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,703.48 : 966,970.76 = 378,413.54 : x
  2. Step 2: Convert to fraction form
    700,703.48/966,970.76 = 378,413.54/x
  3. Step 3: Cross multiply
    700,703.48x = 966,970.76 × 378,413.54
  4. Step 4: Simplify right side
    700,703.48x = 365,914,828,368.09
  5. Step 5: Solve for x
    x = 365,914,828,368.09/700,703.48
  6. Step 6: Final answer
    x = 522,210.66

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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.