Home / 691,805.90-1,038,486.45-534,730.70

Finding the Fourth Proportional to 691,805.90, 1,038,486.45 and 534,730.70

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Solution

The fourth proportional to 691,805.90, 1,038,486.45 and 534,730.70 is: 802,697.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,805.90 : 1,038,486.45 = 534,730.70 : x
  2. Step 2: Convert to fraction form
    691,805.90/1,038,486.45 = 534,730.70/x
  3. Step 3: Cross multiply
    691,805.90x = 1,038,486.45 × 534,730.70
  4. Step 4: Simplify right side
    691,805.90x = 555,310,586,349.02
  5. Step 5: Solve for x
    x = 555,310,586,349.02/691,805.90
  6. Step 6: Final answer
    x = 802,697.10

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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.