Home / 450,276.77-621,566.81-305,281.15

Finding the Fourth Proportional to 450,276.77, 621,566.81 and 305,281.15

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Solution

The fourth proportional to 450,276.77, 621,566.81 and 305,281.15 is: 421,413.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,276.77 : 621,566.81 = 305,281.15 : x
  2. Step 2: Convert to fraction form
    450,276.77/621,566.81 = 305,281.15/x
  3. Step 3: Cross multiply
    450,276.77x = 621,566.81 × 305,281.15
  4. Step 4: Simplify right side
    450,276.77x = 189,752,628,623.11
  5. Step 5: Solve for x
    x = 189,752,628,623.11/450,276.77
  6. Step 6: Final answer
    x = 421,413.32

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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.