Home / 788,925.40-1,184,165.70-390,016.60

Finding the Fourth Proportional to 788,925.40, 1,184,165.70 and 390,016.60

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Solution

The fourth proportional to 788,925.40, 1,184,165.70 and 390,016.60 is: 585,409.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,925.40 : 1,184,165.70 = 390,016.60 : x
  2. Step 2: Convert to fraction form
    788,925.40/1,184,165.70 = 390,016.60/x
  3. Step 3: Cross multiply
    788,925.40x = 1,184,165.70 × 390,016.60
  4. Step 4: Simplify right side
    788,925.40x = 461,844,280,150.62
  5. Step 5: Solve for x
    x = 461,844,280,150.62/788,925.40
  6. Step 6: Final answer
    x = 585,409.32

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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.