Home / 900,900.04-1,243,157.40-609,919.69

Finding the Fourth Proportional to 900,900.04, 1,243,157.40 and 609,919.69

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Solution

The fourth proportional to 900,900.04, 1,243,157.40 and 609,919.69 is: 841,631.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,900.04 : 1,243,157.40 = 609,919.69 : x
  2. Step 2: Convert to fraction form
    900,900.04/1,243,157.40 = 609,919.69/x
  3. Step 3: Cross multiply
    900,900.04x = 1,243,157.40 × 609,919.69
  4. Step 4: Simplify right side
    900,900.04x = 758,226,176,029.21
  5. Step 5: Solve for x
    x = 758,226,176,029.21/900,900.04
  6. Step 6: Final answer
    x = 841,631.86

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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.