Home / 934,070.84-1,400,017.47-428,685.21

Finding the Fourth Proportional to 934,070.84, 1,400,017.47 and 428,685.21

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Solution

The fourth proportional to 934,070.84, 1,400,017.47 and 428,685.21 is: 642,528.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,070.84 : 1,400,017.47 = 428,685.21 : x
  2. Step 2: Convert to fraction form
    934,070.84/1,400,017.47 = 428,685.21/x
  3. Step 3: Cross multiply
    934,070.84x = 1,400,017.47 × 428,685.21
  4. Step 4: Simplify right side
    934,070.84x = 600,166,781,523.05
  5. Step 5: Solve for x
    x = 600,166,781,523.05/934,070.84
  6. Step 6: Final answer
    x = 642,528.12

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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.