Home / 878,070.77-1,211,761.28-496,089.35

Finding the Fourth Proportional to 878,070.77, 1,211,761.28 and 496,089.35

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Solution

The fourth proportional to 878,070.77, 1,211,761.28 and 496,089.35 is: 684,616.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,070.77 : 1,211,761.28 = 496,089.35 : x
  2. Step 2: Convert to fraction form
    878,070.77/1,211,761.28 = 496,089.35/x
  3. Step 3: Cross multiply
    878,070.77x = 1,211,761.28 × 496,089.35
  4. Step 4: Simplify right side
    878,070.77x = 601,141,865,750.37
  5. Step 5: Solve for x
    x = 601,141,865,750.37/878,070.77
  6. Step 6: Final answer
    x = 684,616.65

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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.