Finding the Fourth Proportional to 742,358.79, 1,024,457.94 and 402,827.04
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Solution
The fourth proportional to 742,358.79, 1,024,457.94 and 402,827.04 is: 555,902.84
Step by Step Solution
- Step 1: Write the proportion equation
742,358.79 : 1,024,457.94 = 402,827.04 : x - Step 2: Convert to fraction form
742,358.79/1,024,457.94 = 402,827.04/x - Step 3: Cross multiply
742,358.79x = 1,024,457.94 × 402,827.04 - Step 4: Simplify right side
742,358.79x = 412,679,359,574.70 - Step 5: Solve for x
x = 412,679,359,574.70/742,358.79 - Step 6: Final answer
x = 555,902.84
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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.