Home / 289,569.54-435,240-283,368.18

Finding the Fourth Proportional to 289,569.54, 435,240 and 283,368.18

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Solution

The fourth proportional to 289,569.54, 435,240 and 283,368.18 is: 425,918.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,569.54 : 435,240 = 283,368.18 : x
  2. Step 2: Convert to fraction form
    289,569.54/435,240 = 283,368.18/x
  3. Step 3: Cross multiply
    289,569.54x = 435,240 × 283,368.18
  4. Step 4: Simplify right side
    289,569.54x = 123,333,166,663.20
  5. Step 5: Solve for x
    x = 123,333,166,663.20/289,569.54
  6. Step 6: Final answer
    x = 425,918.99

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1.5x scale

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.