Home / 549,404.10-758,141.57-307,631.25

Finding the Fourth Proportional to 549,404.10, 758,141.57 and 307,631.25

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Solution

The fourth proportional to 549,404.10, 758,141.57 and 307,631.25 is: 424,510.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,404.10 : 758,141.57 = 307,631.25 : x
  2. Step 2: Convert to fraction form
    549,404.10/758,141.57 = 307,631.25/x
  3. Step 3: Cross multiply
    549,404.10x = 758,141.57 × 307,631.25
  4. Step 4: Simplify right side
    549,404.10x = 233,228,039,625.14
  5. Step 5: Solve for x
    x = 233,228,039,625.14/549,404.10
  6. Step 6: Final answer
    x = 424,510.92

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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.