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Finding the Fourth Proportional to 719,505.24, 993,047.21 and 429,135.42

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Solution

The fourth proportional to 719,505.24, 993,047.21 and 429,135.42 is: 592,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,505.24 : 993,047.21 = 429,135.42 : x
  2. Step 2: Convert to fraction form
    719,505.24/993,047.21 = 429,135.42/x
  3. Step 3: Cross multiply
    719,505.24x = 993,047.21 × 429,135.42
  4. Step 4: Simplify right side
    719,505.24x = 426,151,731,543.18
  5. Step 5: Solve for x
    x = 426,151,731,543.18/719,505.24
  6. Step 6: Final answer
    x = 592,284.40

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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.