Home / 687,031.60-1,030,547.40-474,455.20

Finding the Fourth Proportional to 687,031.60, 1,030,547.40 and 474,455.20

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Solution

The fourth proportional to 687,031.60, 1,030,547.40 and 474,455.20 is: 711,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,031.60 : 1,030,547.40 = 474,455.20 : x
  2. Step 2: Convert to fraction form
    687,031.60/1,030,547.40 = 474,455.20/x
  3. Step 3: Cross multiply
    687,031.60x = 1,030,547.40 × 474,455.20
  4. Step 4: Simplify right side
    687,031.60x = 488,948,572,776.48
  5. Step 5: Solve for x
    x = 488,948,572,776.48/687,031.60
  6. Step 6: Final answer
    x = 711,682.80

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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.