Home / 831,205.48-1,147,006.02-468,642.28

Finding the Fourth Proportional to 831,205.48, 1,147,006.02 and 468,642.28

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Solution

The fourth proportional to 831,205.48, 1,147,006.02 and 468,642.28 is: 646,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,205.48 : 1,147,006.02 = 468,642.28 : x
  2. Step 2: Convert to fraction form
    831,205.48/1,147,006.02 = 468,642.28/x
  3. Step 3: Cross multiply
    831,205.48x = 1,147,006.02 × 468,642.28
  4. Step 4: Simplify right side
    831,205.48x = 537,535,516,386.53
  5. Step 5: Solve for x
    x = 537,535,516,386.53/831,205.48
  6. Step 6: Final answer
    x = 646,693.90

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1.5x scale

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.