Home / 1,156,666.84-1,596,250.10-640,420.70

Finding the Fourth Proportional to 1,156,666.84, 1,596,250.10 and 640,420.70

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Solution

The fourth proportional to 1,156,666.84, 1,596,250.10 and 640,420.70 is: 883,808.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156,666.84 : 1,596,250.10 = 640,420.70 : x
  2. Step 2: Convert to fraction form
    1,156,666.84/1,596,250.10 = 640,420.70/x
  3. Step 3: Cross multiply
    1,156,666.84x = 1,596,250.10 × 640,420.70
  4. Step 4: Simplify right side
    1,156,666.84x = 1,022,271,606,417.07
  5. Step 5: Solve for x
    x = 1,022,271,606,417.07/1,156,666.84
  6. Step 6: Final answer
    x = 883,808.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.