Home / 760,155.40-1,140,233.10-404,986.60

Finding the Fourth Proportional to 760,155.40, 1,140,233.10 and 404,986.60

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Solution

The fourth proportional to 760,155.40, 1,140,233.10 and 404,986.60 is: 607,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,155.40 : 1,140,233.10 = 404,986.60 : x
  2. Step 2: Convert to fraction form
    760,155.40/1,140,233.10 = 404,986.60/x
  3. Step 3: Cross multiply
    760,155.40x = 1,140,233.10 × 404,986.60
  4. Step 4: Simplify right side
    760,155.40x = 461,779,126,376.46
  5. Step 5: Solve for x
    x = 461,779,126,376.46/760,155.40
  6. Step 6: Final answer
    x = 607,479.90

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Double scale
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Similar ratio
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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.