Finding the Fourth Proportional to 413,690.56, 570,927.36 and 243,957.76
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Solution
The fourth proportional to 413,690.56, 570,927.36 and 243,957.76 is: 336,681.99
Step by Step Solution
- Step 1: Write the proportion equation
413,690.56 : 570,927.36 = 243,957.76 : x - Step 2: Convert to fraction form
413,690.56/570,927.36 = 243,957.76/x - Step 3: Cross multiply
413,690.56x = 570,927.36 × 243,957.76 - Step 4: Simplify right side
413,690.56x = 139,282,159,868.31 - Step 5: Solve for x
x = 139,282,159,868.31/413,690.56 - Step 6: Final answer
x = 336,681.99
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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.