Home / 926,980.17-1,390,120.34-427,994.25

Finding the Fourth Proportional to 926,980.17, 1,390,120.34 and 427,994.25

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Solution

The fourth proportional to 926,980.17, 1,390,120.34 and 427,994.25 is: 641,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,980.17 : 1,390,120.34 = 427,994.25 : x
  2. Step 2: Convert to fraction form
    926,980.17/1,390,120.34 = 427,994.25/x
  3. Step 3: Cross multiply
    926,980.17x = 1,390,120.34 × 427,994.25
  4. Step 4: Simplify right side
    926,980.17x = 594,963,510,188.07
  5. Step 5: Solve for x
    x = 594,963,510,188.07/926,980.17
  6. Step 6: Final answer
    x = 641,829.81

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Double scale
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1.5x scale

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.