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Finding the Fourth Proportional to 507,503.42, 700,354.37 and 278,075.57

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Solution

The fourth proportional to 507,503.42, 700,354.37 and 278,075.57 is: 383,744.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,503.42 : 700,354.37 = 278,075.57 : x
  2. Step 2: Convert to fraction form
    507,503.42/700,354.37 = 278,075.57/x
  3. Step 3: Cross multiply
    507,503.42x = 700,354.37 × 278,075.57
  4. Step 4: Simplify right side
    507,503.42x = 194,751,443,085.82
  5. Step 5: Solve for x
    x = 194,751,443,085.82/507,503.42
  6. Step 6: Final answer
    x = 383,744.10

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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.