Home / 761,475.12-1,050,557.64-455,560.32

Finding the Fourth Proportional to 761,475.12, 1,050,557.64 and 455,560.32

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Solution

The fourth proportional to 761,475.12, 1,050,557.64 and 455,560.32 is: 628,506.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,475.12 : 1,050,557.64 = 455,560.32 : x
  2. Step 2: Convert to fraction form
    761,475.12/1,050,557.64 = 455,560.32/x
  3. Step 3: Cross multiply
    761,475.12x = 1,050,557.64 × 455,560.32
  4. Step 4: Simplify right side
    761,475.12x = 478,592,374,656.85
  5. Step 5: Solve for x
    x = 478,592,374,656.85/761,475.12
  6. Step 6: Final answer
    x = 628,506.91

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1.5x scale

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.