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Finding the Fourth Proportional to 549,075.42, 757,736.91 and 307,351.98

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Solution

The fourth proportional to 549,075.42, 757,736.91 and 307,351.98 is: 424,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,075.42 : 757,736.91 = 307,351.98 : x
  2. Step 2: Convert to fraction form
    549,075.42/757,736.91 = 307,351.98/x
  3. Step 3: Cross multiply
    549,075.42x = 757,736.91 × 307,351.98
  4. Step 4: Simplify right side
    549,075.42x = 232,891,939,607.58
  5. Step 5: Solve for x
    x = 232,891,939,607.58/549,075.42
  6. Step 6: Final answer
    x = 424,152.91

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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.