Home / 712,290.96-1,068,427.53-286,015.50

Finding the Fourth Proportional to 712,290.96, 1,068,427.53 and 286,015.50

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Solution

The fourth proportional to 712,290.96, 1,068,427.53 and 286,015.50 is: 429,019.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,290.96 : 1,068,427.53 = 286,015.50 : x
  2. Step 2: Convert to fraction form
    712,290.96/1,068,427.53 = 286,015.50/x
  3. Step 3: Cross multiply
    712,290.96x = 1,068,427.53 × 286,015.50
  4. Step 4: Simplify right side
    712,290.96x = 305,586,834,206.72
  5. Step 5: Solve for x
    x = 305,586,834,206.72/712,290.96
  6. Step 6: Final answer
    x = 429,019.67

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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.