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Finding the Fourth Proportional to 761,510.32, 1,050,871.64 and 417,343.60

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Solution

The fourth proportional to 761,510.32, 1,050,871.64 and 417,343.60 is: 575,927.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,510.32 : 1,050,871.64 = 417,343.60 : x
  2. Step 2: Convert to fraction form
    761,510.32/1,050,871.64 = 417,343.60/x
  3. Step 3: Cross multiply
    761,510.32x = 1,050,871.64 × 417,343.60
  4. Step 4: Simplify right side
    761,510.32x = 438,574,553,375.50
  5. Step 5: Solve for x
    x = 438,574,553,375.50/761,510.32
  6. Step 6: Final answer
    x = 575,927.26

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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.