Home / 911,000.47-1,363,848.80-477,690.42

Finding the Fourth Proportional to 911,000.47, 1,363,848.80 and 477,690.42

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Solution

The fourth proportional to 911,000.47, 1,363,848.80 and 477,690.42 is: 715,145.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,000.47 : 1,363,848.80 = 477,690.42 : x
  2. Step 2: Convert to fraction form
    911,000.47/1,363,848.80 = 477,690.42/x
  3. Step 3: Cross multiply
    911,000.47x = 1,363,848.80 × 477,690.42
  4. Step 4: Simplify right side
    911,000.47x = 651,497,506,387.05
  5. Step 5: Solve for x
    x = 651,497,506,387.05/911,000.47
  6. Step 6: Final answer
    x = 715,145.08

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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.