Home / 899,308.07-1,241,030.16-491,400.98

Finding the Fourth Proportional to 899,308.07, 1,241,030.16 and 491,400.98

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Solution

The fourth proportional to 899,308.07, 1,241,030.16 and 491,400.98 is: 678,125.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,308.07 : 1,241,030.16 = 491,400.98 : x
  2. Step 2: Convert to fraction form
    899,308.07/1,241,030.16 = 491,400.98/x
  3. Step 3: Cross multiply
    899,308.07x = 1,241,030.16 × 491,400.98
  4. Step 4: Simplify right side
    899,308.07x = 609,843,435,282.27
  5. Step 5: Solve for x
    x = 609,843,435,282.27/899,308.07
  6. Step 6: Final answer
    x = 678,125.17

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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.