Home / 628,776.02-867,830.49-356,869.41

Finding the Fourth Proportional to 628,776.02, 867,830.49 and 356,869.41

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Solution

The fourth proportional to 628,776.02, 867,830.49 and 356,869.41 is: 492,547.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,776.02 : 867,830.49 = 356,869.41 : x
  2. Step 2: Convert to fraction form
    628,776.02/867,830.49 = 356,869.41/x
  3. Step 3: Cross multiply
    628,776.02x = 867,830.49 × 356,869.41
  4. Step 4: Simplify right side
    628,776.02x = 309,702,154,946.31
  5. Step 5: Solve for x
    x = 309,702,154,946.31/628,776.02
  6. Step 6: Final answer
    x = 492,547.66

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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.