Home / 924,405.40-1,386,608.10-426,741.40

Finding the Fourth Proportional to 924,405.40, 1,386,608.10 and 426,741.40

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Solution

The fourth proportional to 924,405.40, 1,386,608.10 and 426,741.40 is: 640,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,405.40 : 1,386,608.10 = 426,741.40 : x
  2. Step 2: Convert to fraction form
    924,405.40/1,386,608.10 = 426,741.40/x
  3. Step 3: Cross multiply
    924,405.40x = 1,386,608.10 × 426,741.40
  4. Step 4: Simplify right side
    924,405.40x = 591,723,081,845.34
  5. Step 5: Solve for x
    x = 591,723,081,845.34/924,405.40
  6. Step 6: Final answer
    x = 640,112.10

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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.