Home / 688,636.70-1,032,955.05-578,411.90

Finding the Fourth Proportional to 688,636.70, 1,032,955.05 and 578,411.90

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Solution

The fourth proportional to 688,636.70, 1,032,955.05 and 578,411.90 is: 867,617.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,636.70 : 1,032,955.05 = 578,411.90 : x
  2. Step 2: Convert to fraction form
    688,636.70/1,032,955.05 = 578,411.90/x
  3. Step 3: Cross multiply
    688,636.70x = 1,032,955.05 × 578,411.90
  4. Step 4: Simplify right side
    688,636.70x = 597,473,493,085.10
  5. Step 5: Solve for x
    x = 597,473,493,085.10/688,636.70
  6. Step 6: Final answer
    x = 867,617.85

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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.