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Finding the Fourth Proportional to 977,962.40, 1,371,013.60 and 977,962.40

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Solution

The fourth proportional to 977,962.40, 1,371,013.60 and 977,962.40 is: 1,371,013.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,962.40 : 1,371,013.60 = 977,962.40 : x
  2. Step 2: Convert to fraction form
    977,962.40/1,371,013.60 = 977,962.40/x
  3. Step 3: Cross multiply
    977,962.40x = 1,371,013.60 × 977,962.40
  4. Step 4: Simplify right side
    977,962.40x = 1,340,799,750,688.64
  5. Step 5: Solve for x
    x = 1,340,799,750,688.64/977,962.40
  6. Step 6: Final answer
    x = 1,371,013.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.