Home / 939,070.80-1,406,446.20-771,109.20

Finding the Fourth Proportional to 939,070.80, 1,406,446.20 and 771,109.20

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Solution

The fourth proportional to 939,070.80, 1,406,446.20 and 771,109.20 is: 1,154,890.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,070.80 : 1,406,446.20 = 771,109.20 : x
  2. Step 2: Convert to fraction form
    939,070.80/1,406,446.20 = 771,109.20/x
  3. Step 3: Cross multiply
    939,070.80x = 1,406,446.20 × 771,109.20
  4. Step 4: Simplify right side
    939,070.80x = 1,084,523,604,125.04
  5. Step 5: Solve for x
    x = 1,084,523,604,125.04/939,070.80
  6. Step 6: Final answer
    x = 1,154,890.14

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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.