Home / 991,886.40-1,487,829.60-637,592.40

Finding the Fourth Proportional to 991,886.40, 1,487,829.60 and 637,592.40

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Solution

The fourth proportional to 991,886.40, 1,487,829.60 and 637,592.40 is: 956,388.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,886.40 : 1,487,829.60 = 637,592.40 : x
  2. Step 2: Convert to fraction form
    991,886.40/1,487,829.60 = 637,592.40/x
  3. Step 3: Cross multiply
    991,886.40x = 1,487,829.60 × 637,592.40
  4. Step 4: Simplify right side
    991,886.40x = 948,628,845,455.04
  5. Step 5: Solve for x
    x = 948,628,845,455.04/991,886.40
  6. Step 6: Final answer
    x = 956,388.60

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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.