Home / 760,674.44-1,140,389.58-287,090.12

Finding the Fourth Proportional to 760,674.44, 1,140,389.58 and 287,090.12

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Solution

The fourth proportional to 760,674.44, 1,140,389.58 and 287,090.12 is: 430,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,674.44 : 1,140,389.58 = 287,090.12 : x
  2. Step 2: Convert to fraction form
    760,674.44/1,140,389.58 = 287,090.12/x
  3. Step 3: Cross multiply
    760,674.44x = 1,140,389.58 × 287,090.12
  4. Step 4: Simplify right side
    760,674.44x = 327,394,581,368.95
  5. Step 5: Solve for x
    x = 327,394,581,368.95/760,674.44
  6. Step 6: Final answer
    x = 430,400.40

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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.