Finding the Fourth Proportional to 688,681.13, 1,032,430.05 and 239,343.62
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Solution
The fourth proportional to 688,681.13, 1,032,430.05 and 239,343.62 is: 358,809.81
Step by Step Solution
- Step 1: Write the proportion equation
688,681.13 : 1,032,430.05 = 239,343.62 : x - Step 2: Convert to fraction form
688,681.13/1,032,430.05 = 239,343.62/x - Step 3: Cross multiply
688,681.13x = 1,032,430.05 × 239,343.62 - Step 4: Simplify right side
688,681.13x = 247,105,540,401.63 - Step 5: Solve for x
x = 247,105,540,401.63/688,681.13 - Step 6: Final answer
x = 358,809.81
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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.