Home / 749,853.85-1,034,795.51-405,688.67

Finding the Fourth Proportional to 749,853.85, 1,034,795.51 and 405,688.67

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Solution

The fourth proportional to 749,853.85, 1,034,795.51 and 405,688.67 is: 559,848.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,853.85 : 1,034,795.51 = 405,688.67 : x
  2. Step 2: Convert to fraction form
    749,853.85/1,034,795.51 = 405,688.67/x
  3. Step 3: Cross multiply
    749,853.85x = 1,034,795.51 × 405,688.67
  4. Step 4: Simplify right side
    749,853.85x = 419,804,812,145.43
  5. Step 5: Solve for x
    x = 419,804,812,145.43/749,853.85
  6. Step 6: Final answer
    x = 559,848.85

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.