Home / 688,421.90-1,032,348.61-298,953.65

Finding the Fourth Proportional to 688,421.90, 1,032,348.61 and 298,953.65

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Solution

The fourth proportional to 688,421.90, 1,032,348.61 and 298,953.65 is: 448,307.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,421.90 : 1,032,348.61 = 298,953.65 : x
  2. Step 2: Convert to fraction form
    688,421.90/1,032,348.61 = 298,953.65/x
  3. Step 3: Cross multiply
    688,421.90x = 1,032,348.61 × 298,953.65
  4. Step 4: Simplify right side
    688,421.90x = 308,624,385,031.93
  5. Step 5: Solve for x
    x = 308,624,385,031.93/688,421.90
  6. Step 6: Final answer
    x = 448,307.04

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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.