Home / 554,334.40-831,307.20-288,006.40

Finding the Fourth Proportional to 554,334.40, 831,307.20 and 288,006.40

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Solution

The fourth proportional to 554,334.40, 831,307.20 and 288,006.40 is: 431,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,334.40 : 831,307.20 = 288,006.40 : x
  2. Step 2: Convert to fraction form
    554,334.40/831,307.20 = 288,006.40/x
  3. Step 3: Cross multiply
    554,334.40x = 831,307.20 × 288,006.40
  4. Step 4: Simplify right side
    554,334.40x = 239,421,793,966.08
  5. Step 5: Solve for x
    x = 239,421,793,966.08/554,334.40
  6. Step 6: Final answer
    x = 431,908.60

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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.