Home / 687,685.60-1,031,528.40-569,490.40

Finding the Fourth Proportional to 687,685.60, 1,031,528.40 and 569,490.40

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Solution

The fourth proportional to 687,685.60, 1,031,528.40 and 569,490.40 is: 854,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,685.60 : 1,031,528.40 = 569,490.40 : x
  2. Step 2: Convert to fraction form
    687,685.60/1,031,528.40 = 569,490.40/x
  3. Step 3: Cross multiply
    687,685.60x = 1,031,528.40 × 569,490.40
  4. Step 4: Simplify right side
    687,685.60x = 587,445,521,127.36
  5. Step 5: Solve for x
    x = 587,445,521,127.36/687,685.60
  6. Step 6: Final answer
    x = 854,235.60

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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.