Home / 909,724.40-1,364,586.60-555,430.40

Finding the Fourth Proportional to 909,724.40, 1,364,586.60 and 555,430.40

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Solution

The fourth proportional to 909,724.40, 1,364,586.60 and 555,430.40 is: 833,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,724.40 : 1,364,586.60 = 555,430.40 : x
  2. Step 2: Convert to fraction form
    909,724.40/1,364,586.60 = 555,430.40/x
  3. Step 3: Cross multiply
    909,724.40x = 1,364,586.60 × 555,430.40
  4. Step 4: Simplify right side
    909,724.40x = 757,932,881,072.64
  5. Step 5: Solve for x
    x = 757,932,881,072.64/909,724.40
  6. Step 6: Final answer
    x = 833,145.60

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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.