Home / 1,213,809.40-1,820,714.10-763,068.70

Finding the Fourth Proportional to 1,213,809.40, 1,820,714.10 and 763,068.70

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Solution

The fourth proportional to 1,213,809.40, 1,820,714.10 and 763,068.70 is: 1,144,603.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,809.40 : 1,820,714.10 = 763,068.70 : x
  2. Step 2: Convert to fraction form
    1,213,809.40/1,820,714.10 = 763,068.70/x
  3. Step 3: Cross multiply
    1,213,809.40x = 1,820,714.10 × 763,068.70
  4. Step 4: Simplify right side
    1,213,809.40x = 1,389,329,941,358.67
  5. Step 5: Solve for x
    x = 1,389,329,941,358.67/1,213,809.40
  6. Step 6: Final answer
    x = 1,144,603.05

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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.