Finding the Fourth Proportional to 812,778.42, 1,122,182.15 and 507,320.02
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Solution
The fourth proportional to 812,778.42, 1,122,182.15 and 507,320.02 is: 700,443.63
Step by Step Solution
- Step 1: Write the proportion equation
812,778.42 : 1,122,182.15 = 507,320.02 : x - Step 2: Convert to fraction form
812,778.42/1,122,182.15 = 507,320.02/x - Step 3: Cross multiply
812,778.42x = 1,122,182.15 × 507,320.02 - Step 4: Simplify right side
812,778.42x = 569,305,470,781.64 - Step 5: Solve for x
x = 569,305,470,781.64/812,778.42 - Step 6: Final answer
x = 700,443.63
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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.