Home / 890,999.40-1,335,332.70-358,084.20

Finding the Fourth Proportional to 890,999.40, 1,335,332.70 and 358,084.20

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Solution

The fourth proportional to 890,999.40, 1,335,332.70 and 358,084.20 is: 536,657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,999.40 : 1,335,332.70 = 358,084.20 : x
  2. Step 2: Convert to fraction form
    890,999.40/1,335,332.70 = 358,084.20/x
  3. Step 3: Cross multiply
    890,999.40x = 1,335,332.70 × 358,084.20
  4. Step 4: Simplify right side
    890,999.40x = 478,161,541,613.34
  5. Step 5: Solve for x
    x = 478,161,541,613.34/890,999.40
  6. Step 6: Final answer
    x = 536,657.53

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1.5x scale

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.