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Finding the Fourth Proportional to 719,507.49, 993,050.31 and 429,137.67

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Solution

The fourth proportional to 719,507.49, 993,050.31 and 429,137.67 is: 592,287.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,507.49 : 993,050.31 = 429,137.67 : x
  2. Step 2: Convert to fraction form
    719,507.49/993,050.31 = 429,137.67/x
  3. Step 3: Cross multiply
    719,507.49x = 993,050.31 × 429,137.67
  4. Step 4: Simplify right side
    719,507.49x = 426,155,296,226.18
  5. Step 5: Solve for x
    x = 426,155,296,226.18/719,507.49
  6. Step 6: Final answer
    x = 592,287.51

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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.