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Finding the Fourth Proportional to 507,485.22, 700,329.59 and 278,051.22

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Solution

The fourth proportional to 507,485.22, 700,329.59 and 278,051.22 is: 383,710.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,485.22 : 700,329.59 = 278,051.22 : x
  2. Step 2: Convert to fraction form
    507,485.22/700,329.59 = 278,051.22/x
  3. Step 3: Cross multiply
    507,485.22x = 700,329.59 × 278,051.22
  4. Step 4: Simplify right side
    507,485.22x = 194,727,492,009.70
  5. Step 5: Solve for x
    x = 194,727,492,009.70/507,485.22
  6. Step 6: Final answer
    x = 383,710.66

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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.