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Finding the Fourth Proportional to 758,718.15, 1,045,815 and 513,625.62

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Solution

The fourth proportional to 758,718.15, 1,045,815 and 513,625.62 is: 707,980.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,718.15 : 1,045,815 = 513,625.62 : x
  2. Step 2: Convert to fraction form
    758,718.15/1,045,815 = 513,625.62/x
  3. Step 3: Cross multiply
    758,718.15x = 1,045,815 × 513,625.62
  4. Step 4: Simplify right side
    758,718.15x = 537,157,377,780.30
  5. Step 5: Solve for x
    x = 537,157,377,780.30/758,718.15
  6. Step 6: Final answer
    x = 707,980.13

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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.