Home / 917,430.49-1,265,865.23-530,107.32

Finding the Fourth Proportional to 917,430.49, 1,265,865.23 and 530,107.32

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Solution

The fourth proportional to 917,430.49, 1,265,865.23 and 530,107.32 is: 731,438.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,430.49 : 1,265,865.23 = 530,107.32 : x
  2. Step 2: Convert to fraction form
    917,430.49/1,265,865.23 = 530,107.32/x
  3. Step 3: Cross multiply
    917,430.49x = 1,265,865.23 × 530,107.32
  4. Step 4: Simplify right side
    917,430.49x = 671,044,424,556.48
  5. Step 5: Solve for x
    x = 671,044,424,556.48/917,430.49
  6. Step 6: Final answer
    x = 731,438.98

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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.