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Finding the Fourth Proportional to 521,313.93, 719,598.47 and 317,271.69

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Solution

The fourth proportional to 521,313.93, 719,598.47 and 317,271.69 is: 437,947.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,313.93 : 719,598.47 = 317,271.69 : x
  2. Step 2: Convert to fraction form
    521,313.93/719,598.47 = 317,271.69/x
  3. Step 3: Cross multiply
    521,313.93x = 719,598.47 × 317,271.69
  4. Step 4: Simplify right side
    521,313.93x = 228,308,221,111.96
  5. Step 5: Solve for x
    x = 228,308,221,111.96/521,313.93
  6. Step 6: Final answer
    x = 437,947.67

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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.