Finding the Fourth Proportional to 553,637.73, 830,456.55 and 316,812.99
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Solution
The fourth proportional to 553,637.73, 830,456.55 and 316,812.99 is: 475,219.46
Step by Step Solution
- Step 1: Write the proportion equation
553,637.73 : 830,456.55 = 316,812.99 : x - Step 2: Convert to fraction form
553,637.73/830,456.55 = 316,812.99/x - Step 3: Cross multiply
553,637.73x = 830,456.55 × 316,812.99 - Step 4: Simplify right side
553,637.73x = 263,099,422,670.59 - Step 5: Solve for x
x = 263,099,422,670.59/553,637.73 - Step 6: Final answer
x = 475,219.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.