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Finding the Fourth Proportional to 717,522.40, 1,075,894.80 and 296,840.80

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Solution

The fourth proportional to 717,522.40, 1,075,894.80 and 296,840.80 is: 445,100.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,522.40 : 1,075,894.80 = 296,840.80 : x
  2. Step 2: Convert to fraction form
    717,522.40/1,075,894.80 = 296,840.80/x
  3. Step 3: Cross multiply
    717,522.40x = 1,075,894.80 × 296,840.80
  4. Step 4: Simplify right side
    717,522.40x = 319,369,473,147.84
  5. Step 5: Solve for x
    x = 319,369,473,147.84/717,522.40
  6. Step 6: Final answer
    x = 445,100.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.