Home / 1,086,931.80-1,630,397.70-686,273.40

Finding the Fourth Proportional to 1,086,931.80, 1,630,397.70 and 686,273.40

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Solution

The fourth proportional to 1,086,931.80, 1,630,397.70 and 686,273.40 is: 1,029,410.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,931.80 : 1,630,397.70 = 686,273.40 : x
  2. Step 2: Convert to fraction form
    1,086,931.80/1,630,397.70 = 686,273.40/x
  3. Step 3: Cross multiply
    1,086,931.80x = 1,630,397.70 × 686,273.40
  4. Step 4: Simplify right side
    1,086,931.80x = 1,118,898,572,931.18
  5. Step 5: Solve for x
    x = 1,118,898,572,931.18/1,086,931.80
  6. Step 6: Final answer
    x = 1,029,410.10

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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.