Home / 948,310.47-1,308,668.40-518,590.89

Finding the Fourth Proportional to 948,310.47, 1,308,668.40 and 518,590.89

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Solution

The fourth proportional to 948,310.47, 1,308,668.40 and 518,590.89 is: 715,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,310.47 : 1,308,668.40 = 518,590.89 : x
  2. Step 2: Convert to fraction form
    948,310.47/1,308,668.40 = 518,590.89/x
  3. Step 3: Cross multiply
    948,310.47x = 1,308,668.40 × 518,590.89
  4. Step 4: Simplify right side
    948,310.47x = 678,663,510,270.88
  5. Step 5: Solve for x
    x = 678,663,510,270.88/948,310.47
  6. Step 6: Final answer
    x = 715,655.40

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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.