Home / 529,746.30-731,064.65-288,045.45

Finding the Fourth Proportional to 529,746.30, 731,064.65 and 288,045.45

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Solution

The fourth proportional to 529,746.30, 731,064.65 and 288,045.45 is: 397,510.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,746.30 : 731,064.65 = 288,045.45 : x
  2. Step 2: Convert to fraction form
    529,746.30/731,064.65 = 288,045.45/x
  3. Step 3: Cross multiply
    529,746.30x = 731,064.65 × 288,045.45
  4. Step 4: Simplify right side
    529,746.30x = 210,579,844,648.12
  5. Step 5: Solve for x
    x = 210,579,844,648.12/529,746.30
  6. Step 6: Final answer
    x = 397,510.74

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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.