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Finding the Fourth Proportional to 506,281.36, 698,802.33 and 315,181.30

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Solution

The fourth proportional to 506,281.36, 698,802.33 and 315,181.30 is: 435,033.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,281.36 : 698,802.33 = 315,181.30 : x
  2. Step 2: Convert to fraction form
    506,281.36/698,802.33 = 315,181.30/x
  3. Step 3: Cross multiply
    506,281.36x = 698,802.33 × 315,181.30
  4. Step 4: Simplify right side
    506,281.36x = 220,249,426,812.43
  5. Step 5: Solve for x
    x = 220,249,426,812.43/506,281.36
  6. Step 6: Final answer
    x = 435,033.65

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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.