Home / 864,075.60-1,296,113.40-761,432.40

Finding the Fourth Proportional to 864,075.60, 1,296,113.40 and 761,432.40

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Solution

The fourth proportional to 864,075.60, 1,296,113.40 and 761,432.40 is: 1,142,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,075.60 : 1,296,113.40 = 761,432.40 : x
  2. Step 2: Convert to fraction form
    864,075.60/1,296,113.40 = 761,432.40/x
  3. Step 3: Cross multiply
    864,075.60x = 1,296,113.40 × 761,432.40
  4. Step 4: Simplify right side
    864,075.60x = 986,902,736,834.16
  5. Step 5: Solve for x
    x = 986,902,736,834.16/864,075.60
  6. Step 6: Final answer
    x = 1,142,148.60

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Double scale
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Similar ratio
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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.