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Finding the Fourth Proportional to 570,830.40, 855,627.57 and 371,293.38

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Solution

The fourth proportional to 570,830.40, 855,627.57 and 371,293.38 is: 556,538.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,830.40 : 855,627.57 = 371,293.38 : x
  2. Step 2: Convert to fraction form
    570,830.40/855,627.57 = 371,293.38/x
  3. Step 3: Cross multiply
    570,830.40x = 855,627.57 × 371,293.38
  4. Step 4: Simplify right side
    570,830.40x = 317,688,852,486.49
  5. Step 5: Solve for x
    x = 317,688,852,486.49/570,830.40
  6. Step 6: Final answer
    x = 556,538.08

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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.