Home / 687,783.60-1,031,675.40-604,839.60

Finding the Fourth Proportional to 687,783.60, 1,031,675.40 and 604,839.60

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Solution

The fourth proportional to 687,783.60, 1,031,675.40 and 604,839.60 is: 907,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,783.60 : 1,031,675.40 = 604,839.60 : x
  2. Step 2: Convert to fraction form
    687,783.60/1,031,675.40 = 604,839.60/x
  3. Step 3: Cross multiply
    687,783.60x = 1,031,675.40 × 604,839.60
  4. Step 4: Simplify right side
    687,783.60x = 623,998,136,265.84
  5. Step 5: Solve for x
    x = 623,998,136,265.84/687,783.60
  6. Step 6: Final answer
    x = 907,259.40

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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.