Home / 920,459.52-1,270,193.28-512,582.40

Finding the Fourth Proportional to 920,459.52, 1,270,193.28 and 512,582.40

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Solution

The fourth proportional to 920,459.52, 1,270,193.28 and 512,582.40 is: 707,340.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,459.52 : 1,270,193.28 = 512,582.40 : x
  2. Step 2: Convert to fraction form
    920,459.52/1,270,193.28 = 512,582.40/x
  3. Step 3: Cross multiply
    920,459.52x = 1,270,193.28 × 512,582.40
  4. Step 4: Simplify right side
    920,459.52x = 651,078,719,926.27
  5. Step 5: Solve for x
    x = 651,078,719,926.27/920,459.52
  6. Step 6: Final answer
    x = 707,340.96

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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.