Home / 549,007.18-757,622.43-307,289.68

Finding the Fourth Proportional to 549,007.18, 757,622.43 and 307,289.68

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Solution

The fourth proportional to 549,007.18, 757,622.43 and 307,289.68 is: 424,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,007.18 : 757,622.43 = 307,289.68 : x
  2. Step 2: Convert to fraction form
    549,007.18/757,622.43 = 307,289.68/x
  3. Step 3: Cross multiply
    549,007.18x = 757,622.43 × 307,289.68
  4. Step 4: Simplify right side
    549,007.18x = 232,809,554,075.52
  5. Step 5: Solve for x
    x = 232,809,554,075.52/549,007.18
  6. Step 6: Final answer
    x = 424,055.57

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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.