Home / 687,795.60-1,031,693.40-538,496.40

Finding the Fourth Proportional to 687,795.60, 1,031,693.40 and 538,496.40

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Solution

The fourth proportional to 687,795.60, 1,031,693.40 and 538,496.40 is: 807,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,795.60 : 1,031,693.40 = 538,496.40 : x
  2. Step 2: Convert to fraction form
    687,795.60/1,031,693.40 = 538,496.40/x
  3. Step 3: Cross multiply
    687,795.60x = 1,031,693.40 × 538,496.40
  4. Step 4: Simplify right side
    687,795.60x = 555,563,181,803.76
  5. Step 5: Solve for x
    x = 555,563,181,803.76/687,795.60
  6. Step 6: Final answer
    x = 807,744.60

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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.