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Finding the Fourth Proportional to 922,762.80, 1,384,014.60 and 291,740.40

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Solution

The fourth proportional to 922,762.80, 1,384,014.60 and 291,740.40 is: 437,569.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,762.80 : 1,384,014.60 = 291,740.40 : x
  2. Step 2: Convert to fraction form
    922,762.80/1,384,014.60 = 291,740.40/x
  3. Step 3: Cross multiply
    922,762.80x = 1,384,014.60 × 291,740.40
  4. Step 4: Simplify right side
    922,762.80x = 403,772,973,009.84
  5. Step 5: Solve for x
    x = 403,772,973,009.84/922,762.80
  6. Step 6: Final answer
    x = 437,569.63

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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.