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Finding the Fourth Proportional to 637,934.40, 956,901.60 and 357,415.20

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Solution

The fourth proportional to 637,934.40, 956,901.60 and 357,415.20 is: 536,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,934.40 : 956,901.60 = 357,415.20 : x
  2. Step 2: Convert to fraction form
    637,934.40/956,901.60 = 357,415.20/x
  3. Step 3: Cross multiply
    637,934.40x = 956,901.60 × 357,415.20
  4. Step 4: Simplify right side
    637,934.40x = 342,011,176,744.32
  5. Step 5: Solve for x
    x = 342,011,176,744.32/637,934.40
  6. Step 6: Final answer
    x = 536,122.80

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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.