Home / 987,985.16-1,363,384.60-558,256.06

Finding the Fourth Proportional to 987,985.16, 1,363,384.60 and 558,256.06

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Solution

The fourth proportional to 987,985.16, 1,363,384.60 and 558,256.06 is: 770,373.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,985.16 : 1,363,384.60 = 558,256.06 : x
  2. Step 2: Convert to fraction form
    987,985.16/1,363,384.60 = 558,256.06/x
  3. Step 3: Cross multiply
    987,985.16x = 1,363,384.60 × 558,256.06
  4. Step 4: Simplify right side
    987,985.16x = 761,117,710,256.57
  5. Step 5: Solve for x
    x = 761,117,710,256.57/987,985.16
  6. Step 6: Final answer
    x = 770,373.63

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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.