Home / 742,281.30-1,112,437.80-657,644.40

Finding the Fourth Proportional to 742,281.30, 1,112,437.80 and 657,644.40

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Solution

The fourth proportional to 742,281.30, 1,112,437.80 and 657,644.40 is: 985,594.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,281.30 : 1,112,437.80 = 657,644.40 : x
  2. Step 2: Convert to fraction form
    742,281.30/1,112,437.80 = 657,644.40/x
  3. Step 3: Cross multiply
    742,281.30x = 1,112,437.80 × 657,644.40
  4. Step 4: Simplify right side
    742,281.30x = 731,588,489,518.32
  5. Step 5: Solve for x
    x = 731,588,489,518.32/742,281.30
  6. Step 6: Final answer
    x = 985,594.67

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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.